NEET Physics Work, Energy, and Power MCQs

    Prepare for NEET Physics Work, Energy, and Power with topic-wise MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to master fundamental principles.

    NEET Questions / Physics / Work, Energy, and Power

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    Work Done By Constant Force
    Work Done By Variable Force
    Kinetic Energy
    Potential Energy
    Spring Energy
    Law Of Conservation Of Energy
    Work Energy Theorem By Constant Force
    Work Energy Theorm For Variable Force
    Vertical Circular Motion
    Power
    Elastic Collisions
    Inelastic Collision
    Cofficient Of Restitution
    Uniform Circular Motion
    1.

    A block of mass 'm' slides down a frictionless curved track from a height 'h'. It then collides elastically with a stationary block of mass '2m'. After the collision, the smaller block momentarily comes to rest. What is the maximum height the larger block will reach?

    A

    h/2

    B

    h/4

    C

    h/8

    D

    h

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Law Of Conservation Of Energy
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Conservation of Energy, Conservation of Momentum, Elastic Collision
    2.

    Two identical balls of mass 'm' are moving with velocities 'v' and '2v' along the same line and undergo a perfectly inelastic collision. The fraction of the initial kinetic energy transformed into heat is:

    A

    1/10

    B

    1/5

    C

    1/2

    D

    9/10

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Inelastic Collision
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Inelastic Collision, Conservation of Momentum, Kinetic Energy
    3.

    A bullet of mass 'm' moving with velocity 'v' strikes a stationary block of mass 'M' suspended by a string and gets embedded in it. If the combined system rises to a height 'h', the coefficient of restitution (e) is:

    A

    0

    B

    \sqrt{\frac{2gh}{v}}

    C

    \frac{M}{m+M}\sqrt{\frac{2gh}{v}}

    D

    \frac{m}{m+M}\sqrt{\frac{2gh}{v}}

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Inelastic Collision
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Inelastic Collision, Coefficient of Restitution, Conservation of Momentum
    4.

    Two particles of masses 'm' and '2m' moving in opposite directions collide head-on elastically with velocities 'v' and 'v/2' respectively. The velocity of the particle of mass 'm' after the collision is:

    A

    v/2

    B

    -v

    C

    2v

    D

    -v/2

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Inelastic Collision
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :4 mins
    πŸ”„Ncert Concepts :Elastic Collision, Conservation of Momentum, Kinetic Energy
    5.

    A particle of mass 'm' moving with velocity 'v' collides inelastically with another identical particle at rest. If the coefficient of restitution is 'e', the loss in kinetic energy of the system is:

    A

    12mv2(1βˆ’e2)\frac{1}{2}mv^2(1-e^2)

    B

    14mv2(1βˆ’e2)\frac{1}{4}mv^2(1-e^2)

    C

    12mv2(1βˆ’e)\frac{1}{2}mv^2(1-e)

    D

    14mv2(1βˆ’e)\frac{1}{4}mv^2(1-e)

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Inelastic Collision
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :4 mins
    πŸ”„Ncert Concepts :Inelastic Collision, Coefficient of Restitution, Conservation of Momentum, Kinetic Energy
    6.

    A particle is projected with a velocity 'u' at an angle 'hetaheta' with the horizontal. At its highest point, it explodes into two equal fragments, one of which falls vertically downwards. What is the range of the other fragment?

    A

    u2sin(2heta)g\frac{u^2 sin(2heta)}{g}

    B

    2u2sin(2heta)g\frac{2u^2 sin(2heta)}{g}

    C

    3u2sin(2heta)2g\frac{3u^2 sin(2heta)}{2g}

    D

    u2sin(heta)g\frac{u^2 sin(heta)}{g}

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Uniform Circular Motion
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :4 mins
    πŸ”„Ncert Concepts :Projectile Motion, Conservation of Momentum
    7.

    A bullet of mass 10g10g moving horizontally with a velocity of 400\m/s400 \m/s strikes a wooden block of mass 2kg2kg which is suspended by a light inextensible string of length 5m5m. As a result, the center of gravity of the block rises a vertical distance of 10cm10cm. The speed of the bullet after it emerges out horizontally from the block will be

    A

    120 m/s

    B

    280 m/s

    C

    100 m/s

    D

    300 m/s

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Elastic Collisions
    PYQ Year :2016
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Conservation of Momentum, Conservation of Energy
    8.

    A 5g5g projectile is fired horizontally at 500\m/s500 \m/s into a 1kg1kg block suspended by a 3m3m string. The block rises 5cm5cm vertically. What is the projectile's speed after exiting the block?

    A

    100 m/s

    B

    201.3 m/s

    C

    302.6 m/s

    D

    403.9 m/s

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Elastic Collisions
    PYQ Year :2016
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Conservation of Momentum, Conservation of Energy
    9.

    A small object of mass 8g8g is fired horizontally at 600\m/s600 \m/s into a 1.5kg1.5kg pendulum bob initially at rest. The pendulum rises 8cm8cm. Determine the object's speed after passing through the bob.

    A

    1.2 m/s

    B

    3.75 m/s

    C

    3.18 m/s

    D

    600 m/s

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Elastic Collisions
    PYQ Year :2016
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Conservation of Momentum, Conservation of Energy
    10.

    A 12g12g ball is shot horizontally at 350\m/s350 \m/s into a 2.5kg2.5kg block hanging from a long string. The block rises 6cm6cm. Find the ball's exit speed.

    A

    250 m/s

    B

    150 m/s

    C

    50 m/s

    D

    100 m/s

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Work, Energy, and Power
    🎯Topic:Elastic Collisions
    PYQ Year :2016
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Conservation of Momentum, Conservation of Energy

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