1st Year Physics Chapter Seven Oscillations MCQs Quiz Test

If you are looking first Year Chapter Seven Physics OSCILLATIONS Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year Physics Chapter Seven Oscillations MCQs

On this website you will learn first Year Physics Unit Seven OSCILLATIONS MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of OSCILLATIONS.

Important Key Points You Will Learn in Chapter Seven:

• Simple Harmonic Motion (SHM)
• SHM and Uniform Circular Motion
• Phase
• Horizontal Mass Spring System
• Simple Pendulum
• Energy Conservation in SHM
• Free and Forced Oscillations
• Resonance
• Damped Oscillations
• Sharpness of Resonance

Q.1: In vibratory motion?

1. P.E remains constant
2. K.E remains constant
3. Total energy remains constant
4. Total momentum remains constant

C

Q.2: The waveform of S.H.M. is?

1. Standing wave
2. Sine wave
3. Square wave
4. Rectangular waves

B

Q.3: If the spring constant is halved then the new constant will be?

1. 3k
2. 2k
3. 4k
4. k/2

C

Q.4: In S.H.M. the velocity of a particle is maximum at?

1. Mean position
2. Extreme position
3. The middle between mean and extreme position on the right side
4. The middle between mean and extreme position on the left side

A

Q.5: The acceleration of a projection on the diameter of a particle moving along a circle is?

1. ω²x
2. ωx²
3. – ω²x
4. – ωx²

C

Q.6: The total energy of a body executing S.H.M. is directly proportional to?

1. The square root of amplitude
2. The amplitude
3. Reciprocal of amplitude
4. Square of amplitude

D

Q.7: The time period of a second’s pendulum is?

1. 4 seconds
2. 3 seconds
3. 2 seconds
4. 6 seconds

C

Q.8: The length of a simple pendulum on the surface of Earth is 1m, its length on the surface of the moon, where g is 1/6^th value of g on the earth is?

1. Remain the same
2. 6m
3. 1/6m
4. 1/36m

C

Q.9: If the length of a pendulum becomes four times, then its time period will become?

1. Four times
2. Six times
3. Eight times
4. Two times

D

Q.10: Is the force responsible for the vibratory motion of the simple pendulum is?

1. mg cos θ
2. mg sin θ
3. mg tan θ
4. mg

A

Q.11: The tension in the string of simple pendulum is?

1. Constant
2. Maximum at the extreme position
3. Maximum at the mean position
4. Zero at the mean position

C

Q.12: The wave produced in the microwave oven has a wavelength of?

1. 12 m
2. 1.2 cm
3. 12cm
4. 12 μm

C

Q.13: The SI unit of force constant is identical to that of?

1. Force
2. Pressure
3. Surface tension
4. Loudness

C

Q.14: When the amplitude of an SHM becomes double, its energy becomes?

1. Double
2. Four times
3. One half
4. None time

B

Q.15: A simple pendulum suspended from the ceiling of a lift has a time period T when the lift is at rest. When the lift falls freely than its:?

1. Time period becomes zero
2. Acceleration becomes zero
3. Vibration is stopped
4. Frequency becomes infinity

C

Q.16: The energy of SMH is maximum at?

1. Mean position
2. Extreme position
3. In between mean and extreme
4. All position during SHM

D

Q.17: If a hollow bob of a simple pendulum be filled with mercury that drains out slowly, its time period?

1. Increase continuously
2. Decreases continuously
3. Remain the same
4. First increases then decrease

D

Q.18: The displacement of SHM is written as x = x₀ sinωt. If displacement is written by x = x₀ cos ωt then phase constant will be equal to?

1. 0°
2. 45°
3. 90°
4. 180°

C

Q.19: For what displacement the P.E of SHM becomes ¼ of its maximum value?

1. x = x₀
2. x = x₀/2
3. x = x₀/4
4. x = x₀²/2

B

Q.20: K.E and P.E of a spring-mass system executing SHM become equal at with displacement? (A being the amplitude)?

1. ± √2A
2. ±1/ √2 A
3. ± 1/2A
4. 1/ √2 A

B

Q.21: Which one does not work according to resonance?

1. T.V
2. Radio
3. Microwave oven
4. Bulb

D

Q.22: Which of the given equation is correct in SHM?

1. T.E = ½ kx₀²
2. T.E  = K.E_max
3. T.E = P.E_max
4. All are correct

D

Q.23: The phase of SHM describes?

1. Displacement only
2. The direction of motion only
3. Both displacement and direction of motion
4. Neither displacement nor direction of motion

C

Q.24: The natural frequency of a simple pendulum depends upon?

1. It’s mass
2. It’s length
3. Square of its length
4. The square root of its length

D

Q.25: Electrical resonance is observed in?

1. Radio
2. Microwave oven
3. Both in radio and microwave oven
4. Neither in radio nor in a microwave oven

A

Q.26: Total distance traveled by a bob of a simple pendulum in one vibration is equal to?

1. Amplitude
2. Square of amplitude
3. Twice of amplitude
4. Four times of amplitude

Four times of amplitude

Q.27: When K.E energy of SHM is maximum, its?

1. P.E is zero
2. Acceleration is zero
3. Restoring force is zero
4. All P.E acceleration restoring force are zero

D

Q.28: In damped harmonic oscillation, which one decreases?

1. Amplitude of vibration
2. Energy of vibration
3. Both amplitude and energy
4. Neither amplitude nor energy

C

Q.29: Forced vibrations are known as?

1. Simple harmonic vibration
2. Natural vibration
3. Driven harmonic vibration
4. Free vibration

Driven harmonic vibration

Q.30: Do mechanical springs behave like?

1. Resistances
2. RC – series circuit
3. Capacitances
4. None of these

B

Q.31: At Murree Hills (Assume the value of g changes). If we use a simple pendulum as a time standard then the one-second duration will?

1. Increase
2. Decrease
3. Remain the same
4. Is zero

A

Q.32: SMH described by x = cos(t), has frequency of?

1. 2πHz
2. 1/2π Hz
3. πHz
4. Cannot be predicted

B

Q.33: The projection of the particle moving in a circle with non-uniform angular speed executes?

1. S.H.M.
2. Vibratory motion
3. Both b and d
4. None S.H.M.

D

Q.34: If an oscillator starts vibrating from negative extreme, its phase constant will be?

1. π/2rad
2. πrad
3. 3π/2 rad
4. 0°

C

Q.35: For a simple pendulum, the restoring force is caused by?

1. Gravity
2. Spring
3. Hand
4. All of these

A

Q.36: The distance covered by a body in one complete vibration is 20cm. What is the amplitude of the body?

1. 10cm
2. 5cm
3. 15cm
4. 7.5cm

B

Q.37: If the mass of the spring-mass oscillator becomes half the squared frequency will be?

1. Quadruple
2. Half
3. Double
4. Remain the same

C

Q.38: In the case of a simple pendulum, the cause of damping is?

1. Drag force of air
2. Gravity
3. Tension in string
4. None of these

A

Q.39: The energy absorbed by a body is _________ at resonance?

1. Maximum as well minimum
2. Minimum only
3. Maximum only
4. Zero

C

1st Year Physics Chapter Six Fluid Dynamics MCQs Quiz Test

If you are looking first Year Chapter Six Physics FLUID DYNAMICS Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year Chapter Six Physics MCQs

On this website you will learn first Year Physics Unit Six FLUID DYNAMICS MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of FLUID DYNAMICS.

Important Key Points You Will Learn in Chapter Six:

• Viscous drag and Stokes’ Law
• Terminal Velocity
• Fluid Flow
• Equation of Continuity
• Bernoulli’s Equation
• Applications of Bernoulli’s Equation

Q.1: Which of the given has the least coefficient of viscosity?

1. Milk
2. Water
3. tarcoal
4. Engine coal

B

Q.2: The raindrop falling from the sky reaches the ground with?

1. Constant acceleration
2. Terminal velocity
3. Constant pressure
4. Variable acceleration

B

Q.3: Terminal velocity is:?

1. Uniform
2. Maximum
3. Uniform and maximum
4. Neither uniform nor maximum

C

Q.4: When the body moves with terminal velocity the acceleration in the body become?

1. Zero
2. Maximum
3. Variable
4. Infinite

A

Q.5: Terminal velocity is given by equation?

1. V_t  = gr²p/n
2. V_t  = 2gr²p/9n
3. V_t  = gr²p/9n
4. V_t  = 9gr²p/2n

B

Q.6: A flowing liquid possess?

1. Pressure
2. K.E
3. P.E
4. All of these

D

Q.7: The flow of an ideal fluid is?

1. Turbulent
2. Streamline
3. Along straight path
4. All of these

D

Q.8: Which would be the truck least likely to sink into a soft ground?

1. Truck loaded with four wheels
2. Truck loaded with six wheels
3. Empty truck with four wheels
4. Empty truck with six wheels

D

Q.9: When fluid is incompressible then?

1. The velocity of the fluid is constant
2. The flow of the fluid is along the straight line
3. The density of the fluid is constant
4. The volume of the fluid is constant

The density of the fluid is constant

Q.10: An ideal fluid flows through a horizontal tube of variable diameter. The pressure is lowest where the?

1. Velocity is the highest
2. Diameter is the smallest
3. Diameter is the largest
4. Both a and b

D

Q.11: According to the equation of continuity, A₁V₁ = A₂V₂ = constant, the constant is equal to?

1. Flow rate
2. Volume of fluid
3. Mass of fluid
4. density of fluid

A

Q.12: Equation of continuity is obtained by applying the law of conversation of?

1. Mass
2. Energy
3. Momentum
4. All

A

Q.13: Bernoulli’s equation is applicable to?

1. Flow of liquids
2. Viscosity
3. Surface tension
4. All of these

A

Q.14: Speed of efflux can be determined by applying?

1. Bernoulli’s theorem
2. Toricelli’s theorem
3. Venture relation
4. Stoke’s law

B

Q.15: Blood vessels are?

1. Rigid
2. Inflatable
3. of Glass
4. Both a and b

D

Q.16: If a stream of air is blown under one of the pans of a physical balance in equilibrium, then pan may?

1. Go up
2. Not effected
3. Go down
4. None of these

C

Q.17: A man standing near a fast-moving train may fall?

1. Over the train
2. Away from the train
3. Towards the train
4. On himself

C

Q.18: For which position, maximum blood pressure in the body has the smallest value?

1. Standing straight
2. Sitting on chair
3. Sitting on ground
4. Lying horizontally

D

Q.19: Two fog droplets have radii 2:3, their terminal velocities are

1. 4:6
2. 4:9
3. 2:9
4. 4:3

B

Q.20: Bernoulli’s equation is obtained by applying law of conservation of?

1. Mass
2. Energy
3. Momentum
4. Fluid

B

Q.21: Venturi meter is used to measure?

1. Fluid pressure
2. Fluid density
3. Fluid speed
4. Fluid energy

C

Q.22: In cricket when a bowler produces swing, the wall will curve towards?

1. Shinning side of the ball
2. Rough side
3. Seam of the ball
4. Goes straight

A

Q.23: Stoke’s law is applicable if the body has ______ shape?

1. Rough
2. Square
3. Spherical
4. All of these

C

Q.24: The velocity of the flow of liquid through an orifice at the bottom of a tank depends upon?

1. Density of liquid
2. Height of liquid above the orifice
3. Gravity
4. Both b and c

D

Q.25: Systolic pressure is called?

1. Lower blood pressure
2. Higher blood pressure
3. Normal blood pressure
4. Abnormal blood pressure

B

Q.26: An instrument used to measure blood pressure is called?

1. Venturimeter
2. Blood pressure
3. Sphygmomanometer
4. Sonometer

C

Q.27: A chimney works best if air exposed to the chimney is?

1. Stationary
2. Moving
3. Moving slowly
4. Moving fast

D

Q.28: Which one is venturi relation?

1. P₁ – P₂ = ½ PV₂²
2. P₁ – P₂ = ½ Pv²₁
3. P + 1/2Pv² = constant
4. Both a and b

A

Q.29: The effect of the decrease in pressure with the increase of the speed of the fluid in a horizontal pipe is known as?

1. Bernoulli’s effect
2. Torricelli’s effect
3. Venturi effect
4. Stoke’s effect

A

Q.30: Ideal fluid is?

1. Non-viscous
2. Incompressible
3. Steady flow
4. Possess all properties

D

Q.31: Laminar flow usually occurs at speeds which are:?

1. Low
2. High
3. Very high
4. Sometimes high and time low

A

Q.32: For _________ flow the path of the fluid particles cannot be tracked?

1. Laminar
2. Streamline
3. Turbulent
4. Both a and b

C

Q.33: Sphygmomanometers measures blood pressure?

1. Statically
2. Dynamically
3. Some time static and sometimes dynamic
4. None of these

B

Q.34: Carburetor of a car is an application of?

1. Venturi meter
2. Bernoulli’s equation
3. Equation of continuity
4. Torricelli’s theorem

B

Q.35: The blood flow is __________ flow at systolic pressure?

1. Laminar
2. Turbulent
3. Mixed
4. None

B

Q.36: The profile of Aeroplane wing which lifts it up is called as?

1. Wing shape
2. Aerofoil profile
3. Curved profile
4. None of these

B

Q.37: Bernoulli’s equation is applicable for?

1. Laminar flow
2. Turbulent flow
3. Static fluids
4. All kinds of flow

A

Q.38: The density of human blood is nearly equal to?

1. Water
2. Honey
3. Mercury
4. Oil (Kerosene)

A

Q.39: The speed of the fluid is maximum in the venturi meter at?

1. Convergent duct
2. Divergent duct
3. At endpoints
4. at any points

A

Q.40: Ball pen function on the principle of?

1. Viscosity
2. Surface tension
3. Charle’s law
4. Boyle’s law

A

1st Year Physics Chapter Five Circular Motion MCQs Quiz Test

If you are looking first Year Chapter Five Physics CIRCULAR MOTION Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year Physics Chapter 5 MCQs Quiz Test

On this website you will learn first Year Physics Unit Five CIRCULAR MOTION MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of CIRCULAR MOTION.

Important Key Points You Will Learn in Chapter Five:

• Angular Displacement, Velocity, and Acceleration
• Relation b/w Angular and Linear Velocities
• Centripetal Force
• Moment of Inertia
• Angular Momentum
• Rotational Kinetic Energy
• Artificial Satellite
• Real and Apparent Weight
• Orbital Velocity
• Artificial Gravity
• Geostationary Orbits
• Communication Satellite
• Newton’s and Einstein’s views of Gravitation

Q.1: The rotational K.E of the hoop is?

1. Equal to its translational K.E
2. Half than its translational K.E
3. Double than its translational K.E
4. Four times than its translational K.E

A

Q.2: A hoop and disc have the same mass and radius. Their rotational K.E is related by an equation?

1. K.E_hoop = K.E_disc
2. K.E_hoop = 2K.E_disc
3. K.E_hoop = 1/2K.E_disc
4. K.E_hoop = 4K.E_disc

B

Q.3: The angular velocity of a minute hand of a clock is?

1. 2 π/60 rads^-1
2. π/24 rads^-1
3. 2 π/3600 rads^-1
4. π/3600 rads^-1

D

Q.4: The angular K.E of a body is independent of?

1. Speed
2. Moment of inertia
3. Angular momentum
4. None of these

D

Q.5: A body suddenly comes and sits on the circular rotating table. What will remain conserved?

1. Angular momentum
2. Linear velocity
3. Kinetic energy
4. None of these

A

Q.6: According to Einstein, the gravitational interaction is possible between?

1. Material objects only
2. Material objects and electromagnetic radiation only
3. Electromagnetic radiations
4. None of the above

B

Q.7: The number of revolutions in 3π radians?

1. 2
2. 3/2
3. 6
4. 1/60

B

Q.8: The period of circular motion is given by:?

1. T = rV
2. T  = ωw
3. T = 2πω
4. T = 2π/ω

D

Q.9: The direction of linear velocity of a body moving in a circle is?

1. Along the axis of rotation
2. Along the tangent
3. Directed towards the center
4. Directed away from the center

B

Q.10: When a body moves in a circle, the angle between its linear velocity and angular velocity is always?

1. 180°
2. 0°
3. 90°
4. 45°

C

Q.11: An arc of length equal to the circumference of a circle subtends an angle?

1. π radian
2. 2π radian
3. π/2 radian
4. 4π radian

B

Q.12: The relation between linear and angular acceleration is:?

1. α = axrv
2. a = rxα
3. a = α x r
4. r = αxa

C

Q.13: When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by?

1. Mass of body
2. Velocity of body
3. Tension in the string
4. Centripetal acceleration

C

Q.14: What remains constant when the earth revolves around the sun?

1. Linear momentum
2. Linear K.E
3. Angular K.E
4. Angular momentum

D

Q.15: The angular momentum of a body is conserved if?

1. Force acting on its constant
2. Force acting on it is zero
3. The torque acting on it is zero
4. All of these

C

Q.16: A stone is whirled in a vertical circle at the end of the string. When the stone is at the highest position the tension in the string is?

1. Maximum
2. Zero
3. Equal to the weight of the stone
4. Less than the weight of the stone

C

Q.17: The “clutch” of a car works by using which type of collision?

1. Torsional collision
2. Rotational collision
3. Scattering of piston
4. None of these

B

Q.18: In the case of planets, the necessary acceleration is provided?

1. Gravitational force
2. Frictional force
3. Coulomb force
4. Centripetal force

A

Q.19: If a car moves with a uniform speed of 2ms^-1 in a circle of radius 0.4. Its angular speed is?

1. 4 rad. S^-1
2. 5 rad. S^-1
3. 1.6 rad. S^-1
4. 2.8 rad. S^-1

B

Q.20: A body can have constant velocity when it follows an:?

1. Elliptical path
2. Circular path
3. Parabolic path
4. Rectilinear path

D

Q.21: A body moving along the circumference of a circle, completes two revolutions. If the radius of the circular path is R, the total angular displacement covered is?

1. πR
2. 2Πr
3. Zero
4. 4π

D

Q.22: The angular speed for the daily rotation of Earth in rad s^-1 is?

1. 2π
2. π
3. 4π
4. 7.3 x 10^-5 rads^-1

D

Q.23: Time taken by geostationary satellite to complete one rotation around Earth is?

1. 1 year
2. 1 day
3. 1 hour
4. 84 min

1 day

Q.24: The direction of angular momentum is along?

1. Tangent to the circle
2. Inward the radius
3. Axis of rotation
4. Outward of the radius

C

Q.25: If a wheel of radius r turns through an angle of 30°, then the distance through which any point on its rim moves is?

1. π/3 r
2. π/6 r
3. π/30 r
4. π/180 r

B

Q.26: In angular motion, Newton’s second law of motion is:?

1. F = ma
2. F = ∆p/∆t
3. t = 1α
4. All of the above

C

Q.27: The angular speed of the second’s hand of a watch in rads^-1 is?

1. π
2. π/2
3. π/30
4. π/180

π/30

Q.28: The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is?

1. π
2. 3π
3. 6π
4. 12π

D

Q.29: What is an outward force acting on a mass of 10kg when rotating at one end of an inelastic string 10m long at speed of 1m/s?

1. 1N
2. 10N
3. 2N
4. 100N

A

Q.30: If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is?

1. At the highest point
2. At the lowest point
3. At any point during motion
4. At the point where gravity is not acting

B

Q.31: The global positioning system consists of how many satellites?

1. 24 Natural satellites
2. 24 artificial satellites
3. 3 synchronous satellites
4. Both b and c

B

Q.32: A man of weight W is standing on an elevator which is ascending with an acceleration a. The apparent weight of the man is?

1. mg
2. mg – ma
3. mg + ma
4. ma – mg

C

Q.33: Who discovered the inverse square law of gravity?

1. Einstein
2. Galileo
3. Newton
4. Plank

C

Q.34: Bruce Mc. Candles stepped into space from a space shuttle in 1984 at a speed of?

1. 2900 km h^-1
2. 29000 km h^-1
3. 29000 ms^-1
4. 2900 ms^-1

B

Q.35: A satellite moving round the earth constitutes?

1. An inertial frame of reference
2. Non-inertial frame
3. Neither inertial nor non-inertial
4. Both inertial and non-inertial

B

Q.36: A body of mass 10kg is rotating in a circular path of radius ‘r’ m with constant speed. The work done in one complete revolution is?

1. 10.3 rads^-1
2. Zero
3. 100 rads^-1
4. 0.5 rads^-1

B

Q.37: A body of 2kg is suspended from the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be?

1. 9.8N
2. 19.6N
3. 129.4N
4. 39.2N

D

Q.38: Moment of inertia of which body about its perpendicular axis is greater, (all have the same mass and radius)?

1. Sphere
2. Hoop
3. Disc
4. All have the same movement of inertia

B

Q.39: If θ_E is the angle of bending of light predicted by Einstein’s theory of gravity and θ_N that by Newton’s then?

1. θ_E = θ_N
2. θ_E = 1/2 θ_N
3. θ_E = 2θ_N
4. No relation exists between θ_E and θ_N

B

Q.40: In the solar eclipse of 1919 A.D., bending of straight light was measured to be?

1. 1.745 degree
2. 1.745 minute
3. 1.745 seconds
4. 1.745 radian

C

1st Year Physics Chapter Four WORK AND ENERGY MCQs Quiz Test

If you are looking first Year Chapter Four Physics WORK AND ENERGY Chapter Wise MCQs question answers. You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

Physics MCQs Chapter 4 Solved Question Answers

On this website you will learn first Year Physics Unit Four WORK AND ENERGY MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of WORK AND ENERGY.

Important Key Points You Will Learn in Chapter Four:

• Work done by Constant and Variable Forces
• Work is done by Gravitational Field
• Power/Power and Velocity
• Work-Energy Principle
• Absolute Potential Energy
• Escape Velocity
• Interconversion of P.E and K.E
• Conservation of Energy
• Non-Conservational Energy Sources

Q.1: Work done will be maximum if the angle between the force F and displacement d is?

1. 45°
2. 90°
3. 180°
4. 0°

D

Q.2: A field in which the work is done in moving a body in a closed path is zero is called?

1. Electric field
2. Conservative field
3. Electromagnetic field
4. Gravitational field

B

Q.3: When a force is perpendicular to the direction of motion of the body, then work done on the body is?

1. Zero
2. Minimum
3. Infinity
4. Maximum

A

Q.4: Which of the following types of force does not work on the particle when it acts on it?

1. Frictional force
2. Gravitational force
3. Elastic force
4. Centripetal force

D

Q.5: If a body a mass of 2 kg is raised vertically through 2m, then the work done will be?

1. 38.2 J
2. 392.1 J
3. 39.2 J
4. 3.92 J

C

Q.6: An elevator weighing 3.5×10⁺¹⁰ N is raised to a height of 1000m in the absence of friction, the work done is?

1. 3.5×10³ J
2. 3.5×10⁴ J
3. 3.5×10⁶ J
4. 3.5×10⁹ J

D

Q.7: The average power and instantaneous power become equal if work is done?

1. Any rate
2. Variable-rate
3. Uniform rate
4. High rate

C

Q.8: The relation between horsepower and watt is?

1. 1 hp = 546 watts
2. 1 hp = 746 watts
3. 1 hp = 1000 watts
4. 1 hp = 946 watts

B

Q.9: Proton, electron and neutron and α particles have same momentum. Which of them have highest K.E?

1. Proton
2. Electron
3. Neutron
4. α-particle

B

Q.10: The power output of a lamp is 6W. How much energy does the lamp give out in 2 minutes?

1. 3 J
2. 120 J
3. 720 J
4. 430 J

C

Q.11: Work done by a variable force is determined by dividing?

1. Force into the small interval
2. Displacement into the small interval
3. Both force and displacement into small intervals
4. Force into small and displacement into large intervals

B

Q.12: Work done on the body equals?

1. Change in its K.E always
2. Change in its P.E always
3. Change in its K.E or change in its P.E
4. Neither change in K.E nor change in its P.E

Change in its K.E or change in its P.E

Q.13: The escape velocity of a body in the gravitational field of Earth is independent of?

1. it’s mass
2. the angle at which it is thrown
3. both its mass and the angle at which it is thrown
4. the gravitational field of Earth

C

Q.14: The tides raise the water in the sea roughly in a day?

1. Once
2. Twice
3. Four-time
4. Eight-time

B

Q.15: The source of geothermal energy is: ?

1. The decay of radioactive elements in the earth
2. Compression of material in the earth
3. The residual heat of the earth
4. All as side in a, b and c

D

Q.16: The highest value of escape velocity in the solar system is for the planet?

1. Earth
2. Neptune
3. Jupiter
4. Moon

C

Q.17: Work done by the force of friction is?

1. Always positive
2. Always negative
3. Positive only for the small frictional force
4. Positive only for the large frictional force

B

Q.18: Gravitational P.E of a body can be found by?

1. no formula
2. mg.h
3. – Gm/r
4. Both b and c

B

Q.19: If velocity is doubled, then?

1. Momentum increase to 4 times and K.E increases to 2 times
2. Momentum and K.E remain the same
3. Momentum increases to 2 times and K.E increases constant
4. Momentum increases to 2 times and K.E increases to 4 times

D

Q.20: We get energy from food during a day which is equivalent to the energy obtained from ------- liter petrol?

1. 1
2. ½
3. 1/3
4. ¼

C

Q.21: One megawatt-hour is equal to?

1. 3.6×10⁶  J
2. 3.6×10¹² J
3. 3.6×10⁹ J
4. 3.6×10⁸ J

D

Q.22: Which of the following is not a conservative force?

1. Friction
2. Electric
3. Gravitational
4. Elastic spring force

A

Q.23: Does work have the dimension as that of the same as that of?

1. Torque
2. Angular momentum
3. Linear momentum
4. Power

A

Q.24: The pull of the Moon can distort the continents by pulling and up and down by as much as?

1. 25mm
2. 25cm
3. 250cm
4. 2.5cm

B

Q.25: The relation between the escape velocity V_esc and orbital speed V_o is given by?

1. V_esc = 1/2V_o
2. V_esc = √2 V_o
3. V_esc = V_o
4. V_esc = 2V_o

B

Q.26: The escape velocity from the earth’s surface in km s^-1 is about?

1. 4.2 km s^-1
2. 7.5 km s^-1
3. 9.5 km s^-1
4. 11 km s^-1

D

Q.27: If the Moon radius is 1600 km and g on its surface is 1.6 ms^-2, then the escape velocity on the moon is?

1. 1600ms^-1
2. 50.6ms^-1
3. 71.6ms^-1
4. 2400ms^-1

D

Q.28: When two protons are brought close, their?

1. Kinetic energy increases
2. P.E. increases
3. P.E. decreases
4. P.E. does not change

B

Q.29: When an arrow is released from its bow, its energy is transformed from?

1. The heat energy to K.E
2. Elastic P.E to K.E
3. Chemical energy to elastic P.E
4. K.E to elastic P.E

B

Q.30: Two bodies of 4g and 16g have the same K.E. What is the ratio of their momentum?

1. 2:1
2. 4:1
3. 1:2
4. 1:4

C

Q.31: Escape velocity depends upon the radius of Earth. Which one shows its proper dependence?

1. V α R
2. V α R^1/2
3. V α R^1/3
4. V α R^-1

B

Q.32: The temperature of hot igneous rocks is about?

1. 20,000 °C or more
2. 2000°C or more
3. 200° C or more
4. 20°C or more

C

Q.33: A tennis ball is dropped on to a horizontal surface. As the ball bounces up and down, the height of each bounce gradually decreases, during the motion of the ball?

1. The K.E of the ball is constant
2. The sum of P.E and K.E energies of the ball is constant
3. The P.E of the ball is constant
4. The total energy of the ball, ground, and the air is constant

D

Q.34: The propulsion force of a rocket is?

1. Non-conservative force
2. Conservative force
3. Conservative and rocket has reached high altitude
4. None of these

A

Q.35: A car is driven along a level road. The total energy input from petrol is 60kJ and the car wastes 45kJ of energy, what is the efficiency of the car?

1. 25%
2. 15%
3. 45%
4. 75%

A

Q.36: Geothermal energy is a ----------source of energy?

1. Non-renewable
2. Stable
3. Renewable
4. None of the above

C

Q.37: The source of tidal energy is?

1. Sun
2. Earth
3. Both a and b
4. Moon

D

Q.38: -------- cell converts solar energy into electrical energy?

1. Rotary
2. Photovoltaic
3. Galvanic
4. None of these

B

Q.39: From which source would the release of energy be affected by the change in the earth’s gravitational field?

1. Geothermal
2. Chemical
3. Hydroelectric
4. Nuclear

C

Q.40: The center of the Sun produces large amounts of energy, what is the source of this energy?

1. Chemical reaction
2. Nuclear fission
3. Nuclear fusion
4. Radioactive decay

C

1st Year Physics Chapter Three MOTION AND FORCE MCQs Quiz Test

 If you are looking first Year Chapter Three Physics MOTION AND FORCE Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year Physics Chapter 3 MCQs

On this website you will learn first Year Physics Unit Three MOTION AND FORCE MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of MOTION AND FORCE.

Important Key Points You Will Learn in Chapter Three:

• Displacement
• Velocity
• Acceleration
• Newton’s Laws of Motion
• Momentum and Newton’s Second Law of Motion
• Impulse
• Law of Conservation of Momentum
• Elastic and Inelastic Collision
• Force due to Water Flow
• Momentum and Explosive Forces
• Rocket Propulsion
• Projectile Motion

Q.1: What must change when a body is accelerating?

1. The mass of the body
2. The velocity of the body
3. The speed of the body
4. The force acting on the body

B

Q.2: A body is moving with uniform velocity. Its?

1. Speed changes
2. Acceleration changes
3. The direction of motion changes
4. Displacement from origin changes

D

Q.3: A man in a car moving with a velocity 36km/hr. His speed with respect to the car is:?

1. 10m/s
2. 36m/s
3. Zero
4. Infinite

C

Q.4: When the velocity-time graph is a straight line parallel to the time axis then:?

1. Acceleration is const
2. Acceleration is variable
3. Acceleration is zero
4. Velocity is zero

C

Q.5: A body is moving in a circle at a constant speed. Which of the following statement is true about the body?

1. There is no acceleration
2. There is a force acting at a tangent to a circle
3. There is a force acting away from the center of the circle
4. There is a force acting towards the center of the circle

D

Q.6: When a person walks along East, the force of friction is along?

1. East
2. West
3. Anywhere from east to west
4. Anywhere from north to south

B

Q.7: Instantaneous and average velocities become equal when the body:?

1. Has zero acceleration
2. Has uniform acceleration
3. Has variable acceleration
4. Moves in a circle

A

Q.8: Which law of motion is called the law of inertia?

1. 1^st law
2. 2^nd law
3. 3^rd law
4. All 1^st, 2^nd and 3^rd

A

Q.9: When a horse pulls a cart, the force that makes the horse run forward is the force exerted by?

1. The horse on the ground
2. The cart on the ground
3. The ground on the horse
4. The ground on the cart

C

Q.10: Newton’s law does not hold good for particles?

1. At rest
2. Moving slowly
3. Move with high velocity
4. Move with a velocity comparable to the velocity of light

D

Q.11: 1^st law of motion gives the definition of?

1. Rest
2. Motion
3. Velocity
4. Force

D

Q.12: 2^nd law of motion measure which quantity?

1. Force
2. Acceleration
3. Velocity
4. Both force and acceleration

A

Q.13: Imran travels 2m with speed v₁ and then 2m with speed v₂ his average speed is?

1. v₁ + v₂/2
2. v₁v₂/2
3. v₁v₂/v₁+v₂
   
4. 2v₁v₂/v₁+v₂

D

Q.14: Momentum depends upon?

1. Force acts on the body
2. Mass of the body
3. The velocity of the body
4. Both mass and velocity of the body

D

Q.15: Why does an object falling in the earth’s gravitational field reach a steady velocity?

1. Air resistance increases with increasing the velocity
2. The earth’s gravitational field decreases as the object falls
3. The mass of the object remains constant
4. The weight of the object increases as it falls

A

Q.16: When a body moves in a straight line then its displacement coincides with?

1. Distance
2. Force
3. Acceleration
4. Both a and b

A

Q.17: When two bodies stick together after the collision, the collision is said to be?

1. Perfectly elastic
2. Partially elastic
3. Completely inelastic
4. None of these

C

Q.18: Motorcycle safety helmet extends at the time of the collision and hence decreasing the?

1. Change of collision
2. Force acting
3. Velocity
4. Impulse

B

Q.19: The collision between the two bodies may be elastic if bodies are?

1. Solid and soft
2. Soft and elastic
3. Solid and hard
4. Hard and elastic

C

Q.20: At the maximum height on the trajectory which of projectile becomes zero?

1. Acceleration
2. Velocity
3. Vertical velocity
4. Horizontal velocity

C

Q.21: When the car takes turns around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to?

1. Centripetal force
2. Gravitational force
3. Their inertia
4. Centrifugal force

C

Q.22: A body is falling freely under gravity. How much distance does it fall during an interval of time between 1^st and 2^nd seconds of its motion, taking g = 10?

1. 10m
2. 15m
3. 20m
4. 25m

B

Q.23: What is the shape of the velocity-time graph for constant acceleration?

1. Straight inclined line
2. Parabola
3. Inclined curve
4. Declined curve

A

Q.24:   When a collision between the bodies in 2 system is inelastic in nature than for the system?

1. Momentum changes but K.E remain to conserve
2. K.E changes but momentum remain to conserve
3. Both momentum and K.E changes
4. Both momentum and K.E remain to conserve

B

Q.25: Which shows the correct relation between time of flight T and maximum height H?

1. H = gT²/8
2. H = 8T²/g
3. H = 8g/T²
4. H = 8/gT²

A

Q.26: If an iron ball and wooden ball of the same radius was released from the height ‘h’ in a vacuum, then the time taken by both of them to reach the ground will be?

1. Unequal
2. Equal
3. Zero
4. None of these

B

Q.27: Taking off a rocket can be explained by?

1. 1^st law of motion
2. 2^nd law of motion
3. Law of conservation of momentum
4. Law of conservation of energy

C

Q.28: Which of the following is not an example of projectile motion?

1. A gas-filled balloon
2. Bullet fired from a gun
3. A football kicked
4. A baseball shot

A

Q.29: What is the angle of projection for which the range and maximum height become equal?

1. tan^-11/4
2. tan^-14
3. tan^-1 ½
4. tan^-12

B

Q.30: The thrust on the rocket in the absence of gravity is?

1. Constant
2. Not constant
3. Constant if the rate of ejected gases is constant
4. Constant for short-range rocket

A

Q.31: When two bodies move towards each other with constant speeds the distance between them decreases at the rate of 6m/sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are?

1. 5m/s, 1m/s
2. 3m/s, 3m/s
3. 6m/s, 1m/s
4. 4m/s, 2m/s

A

Q.32: Distance covered by a freely falling body in 2 seconds will be?

1. 4.9m
2. 19.6m
3. 39.2m
4. 44.1m

B

Q.33: The distance covered by a body with uniform acceleration in time ‘t’ starting from rest is?

1. at²/2
2. Vt
3. a²t/2
4. Both a and b

A

Q.34: Flight of a rocket in the space is an example of?

1. The second law of motion
2. Third law of motion
3. The first law of motion
4. Law of gravitation

B

Q.35: The trajectory (or path) of a projectile flying against strong air currents is?

1. Straight line
2. Parabola
3. Hyperbola
4. Not a parabola

D

Q.36: Rocket engine lifts rocket from the earth’s surface because of hot gas with high velocity?

1. React against the rocket and push it up
2. Push against the air
3. Push against the earth
4. Heat up the air which lifts the rocket

A

Q.37: The force experienced by a wall on which water strikes normally at a speed of 10ms^-1 and at a discharge of 0.0001m³s^-1 is?

1. 1N
2. 10N
3. 100N
4. None

A

Q.38: The time rate of change of momentum is equal to?

1. Force
2. Impulse
3. Velocity
4. Both a and c

A

Q.39: The range of the projectile at 30° is R₃₀ and at 60° is R₆₀ then?

1. R₃₀ = R₆₀
2. R₃₀ = 2R₆₀
3. 2R₃₀ = R₆₀
4. R₃₀ = R₆₀ if initial velocities are the same

D

Q.40: Why do Ballistic missiles fail in some circumstances of precision?

1. Due to their shape
2. Due to air resistance
3. Due to the angle of projection
4. All of these

B

1st Year Physics Chapter Two VECTORS AND EQUILIBRIUM MCQs Quiz Test

If you are looking first Year Chapter Two Physics VECTORS AND EQUILIBRIUM Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

Physics Vectors and Equilibrium Notes

On this website you will learn first Year Physics Unit Two VECTORS AND EQUILIBRIUM MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of VECTORS AND EQUILIBRIUM.

Important Key Points You Will Learn in Chapter Two:

• Vectors
• Rectangular Components of a vector
• Position Vector
• Vector Addition by Rectangular Components
• Scalar Product and Vector Product
• Torque
• Conditions of Equilibrium

11th Class Chapter No.2 Physics MCQs Quiz Test

Q.1: Rectangular coordinate system is also called?

1. Polar coordinate system
2. Cartesian coordinate system
3. Cylindrical-coordinate system
4. Spherical coordinate system

B

Q.2: The direction of a vector in space is specified by?

1. One angle
2. Two angle
3. Three angle
4. No angle

C

Q.3: Addition of vector obey?

1. Commutative law
2. Distributive law
3. Associative law
4. All of these

D

Q.4: Which of the following statement is correct about force and velocity?

1. Force and velocity both are scalars
2. Force and velocity both are vectors
3. Force is scalar and velocity is vector
4. Force is vector and velocity is scalar

B

Q.5: Unit vector n is along?

1. x-axis
2. Normal on a surface
3. y-axis
4. z-axis

B

Q.6: Cosθ i + Sinθ j is a?

1. Vector
2. Position vector
3. A vector in the direction at angle θ with x-axis
4. The unit vector in the direction at angle θ with x-axis

D

Q.7: Maximum number of rectangular components are?

1. One
2. Two
3. Three
4. Infinite

C

Q.8: The maximum number of components of a vector maybe?

1. One
2. Two
3. Three
4. Infinite

D

Q.9: Which one is not correct for a vector A = √2i +√2j?

1. has direction θ = 45° with x-axis
2. has magnitude
3. has magnitude 2 and direction θ = 45° with the y-axis
4. has magnitude -2

D

Q.10: The result of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is?

1. 30°
2. 60°
3. 90°
4. 120°

D

Q.11: What is the angle that the given vector makes with y-axis and A = 2i + √.12 j?

1. 30°
2. 60°
3. 90°
4. 120°

B

Q.12: In which quadrant the two rectangular components of a vector have same sign?

1. 1^st
2. 2^nd
3. Both 1^st and 3^rd
4. 4^th

C

Q.13: Two vectors A and B are making angle θ with each other. The scalar projection of vector B on vector A is written as?

1. A.B/A
2. A.B/B –
3. A.cosθ
4. Both a and b are correct

A

Q.14: Two vectors are A = 3i + 2j – k and B = 3i – 2j + k then?

1. B is antiparallel to A
2. B is inclined at 60° with A
3. B has a negative magnitude
4. B is perpendicular to A

A

Q.15: Arc of a triangle formed by vectors i and (i – j) is?

1. 1
2. 0
3. ½
4. Triangle cannot be formed by these vectors

C

Q.16: Which of the following is a scalar quantity?

1. The braking force needed to stop the car
2. The heat needed to boil some water
3. The effort needed to hammer a nail into wood
4. The thrust needed to lift a rocket off the ground

B

Q.17: Which is not a correct relation?

1. A x B = A x B
2. |A x B| = – |B x A|
3. A x B = ABSinθn
4. B x A = ABSinθ (-n)

B

Q.18: Out of the following set of forces, the resultant of which triplet cannot be zero?

1. 10, 10, 10
2. 10, 10, 20
3. 10, 20, 40
4. 10, 20, 20

C

Q.19: If east, west, north, south, up and down are representing the direction of unit vectors, then east x south has direction along?

1. West
2. North
3. Down
4. Up

C

Q.20: Null Vector is a vector which has?

1. Zero magnitude
2. No specified direction
3. Both a and b are correct
4. Both a and b are not correct

C

Q.21: Which one is a unit vector?

1. √3i + √3j + √3k
2. 1/√3 i + 1/√3j + 1/√3 k
3. √3/3 i + √3/3j + √3/3 k
4. Both b and c are correct

C

Q.22: Angle between A = i and B = i – j is?

1. 0°
2. 45°
3. 90°
4. 270°

B

Q.23: The magnitude of the cross product of two vectors is equal to the dot product between them. The angle between the two vectors?

1. 30°
2. 45°
3. 60°
4. 180°

B

Q.24: An airplane flies 400m due north and then flies 300m south and then flies 1200m. The net displacement is?

1. 1500m
2. 1200m
3. 900m
4. 700m

B

Q.25: A vector contains more information than a scalar. What is this extra information?

1. Acceleration
2. Direction
3. Size
4. Resultant

B

Q.26: Five equal forces of 10N each are applied at one point and all are lying in one place. If the angles between them are equal, the resultant force will be?

1. 10N
2. 20N
3. 10 √2 N
4. Zero

D

Q.27: The torque acting on a body determines?

1. Acceleration
2. Linear acceleration
3. Angular acceleration
4. The direction of motion of the body

C

Q.28: The torque acting on a body determines?

1. [MLT^-1]
2. [ML²T^-1]
3. [ML²T^-2]
4. [ML²T]

C

Q.29: A body will be in complete equilibrium when it is satisfying?

1. 1^st condition of equilibrium
2. 2^nd condition of equilibrium
3. Both 1^st and 2^nd condition of equilibrium
4. Impossible

C

Q.30: A body in equilibrium is?

1. At rest
2. In motion
3. At rest or in uniform motion
4. All are correct

C

Q.31: Three coplanar forces acting on a body keep it in equilibrium. They should therefore be?

1. Concurrent
2. Non-concurrent
3. Parallel
4. Non-parallel

A

Q.32: Which of the following pairs does not have identical dimensions?

1. Torque and energy
2. Momentum and impulse
3. Energy and work
4. Mass and moment of inertia

D

Q.33: A central force is that which?

1. Can produce torque
2. Can’t produce torque
3. Some time can produce torque some time can’t
4. Has no relation with torque

B

Q.34: It is easier to turn a steering wheel with both hands than with a single hand because?

1. Acceleration force increase on the wheel
2. Two forces act on the wheel
3. Two hands provide a firm grip
4. The couple acts on the wheel

D

Q.35: A force of 10N is acting along the y-axis. Its component along the x-axis is?

1. Zero
2. 10N
3. 100N
4. 5N

A

Q.36: The unit vector in the direction of vector A = 2i – 2j + k is?

1. 2i – 2j + k/2
2. 2i – 2j + k/9
3. 2i – 2j + k/3
4. 2i – 2j + k/5

C

Q.37: The magnitude of i.jxk is?

1. 0
2. 1
3. -1
4. i

B

Q.38: In which quadrant only, the value of ‘tan’ will be positive?

1. First
2. Second
3. Third
4. Both 1st and 3^rd

D

Q.39: The cross product of two vectors is zero when?

1. They are parallel vectors
2. They are anti-parallel vectors
3. They are perpendicular vectors
4. Both a and b are correct

D