Practice test

Motion, force and gravitation (laws) - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Action and Reaction ______________ .
    1. always act on same body
    2. are equal in magnitude
    3. are in same direction
    4. always act independently
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  2. Question 2

    The amount of matter in a ball of Steel is its-
    1. Weight
    2. Mass
    3. Density
    4. Volume
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  3. Question 3

    Who among the following is credited with postulating Three laws of planetary motion?
    1. Isaac Newton
    2. Tycho Brahe
    3. Johannes Kepler
    4. Galileo Galilei
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  4. Question 4

    When net torque is zero ___________ will be constant.
    1. force
    2. angular momentum
    3. linear momentum
    4. acceleration
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  5. Question 5

    In the Earth, the weight of a body is maximum at the
    1. Pole
    2. Centre of the Earth
    3. Equator
    4. Surface
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  6. Question 6

    Once a satellite has been launched into orbit, the only force governing its motion is the force of _______ .
    1. Friction
    2. Elasticity
    3. Gravity
    4. Fuel driven
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  7. Question 7

    The weight of an object on the Moon is equal to ______________ of its weight on the earth.
    1. 1/8th
    2. 1/4th
    3. 1/6th
    4. 1/10th
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  8. Question 8

    Rocket works on the principle of-
    1. Newton's Third Law
    2. Newton's First Law
    3. Newton's Second Law
    4. Archimedes Principle
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  9. Question 9

    Rough surface have -
    1. high friction
    2. very low friction
    3. no friction
    4. None of the above
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  10. Question 10

    The weight of a body acts through center of
    1. gravity
    2. mass
    3. both A and B
    4. buoyancy
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  11. Question 11

    The movement of a horse lawn carriage is an example of which principle of physics?
    1. Newton's third law
    2. Ohm's law
    3. Archimedes principle
    4. Avogadro's law
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  12. Question 12

    The function of ball bearings in a wheel is-
    1. to increase friction
    2. to convert kinetic friction into rolling friction
    3. to convert static friction into kinetic friction
    4. just for convenience
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  13. Question 13

    A body of mass 8 kg is moving with a velocity of 4 m/s, find its momentum.
    1. 2
    2. 64
    3. 32
    4. 4
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  14. Question 14

    Which of the following is an correct example of the contact force?
    1. Electrostatic force
    2. Muscular force
    3. Gravitational force
    4. Magnetic force
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  15. Question 15

    Who among the following is known to be the first one to consider the role of Inertia in motion?
    1. Galileo Galilei
    2. Isaac Newton
    3. Albert Einstein
    4. Nicolaus Copernicus
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  16. Question 16

    Which one of the following is NOT a conservative force?
    1. Frictional force
    2. Electric force
    3. Gravitational force
    4. Spring force
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  17. Question 17

    Which one of the following about different frictions forces is correct?
    1. Kinetic friction > Static friction > Rolling friction
    2. Static friction > Rolling friction > Kinetic friction
    3. Static friction> Kinetic friction > Rolling friction
    4. Kinetic friction > Rolling friction > Static friction
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  18. Question 18

    Which of the following statements give characteristics of contact forces?
    1. It appears between an object when it is in contact with some other object.
    2. It satisfies the third law of motion
    3. It may appear between a pair of solid and fluid.

    Select the answer using the code given below:
    1. 1 and 3 only
    2. 2 and 3 only
    3. 1 and 2 only
    4. 1, 2 and 3
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  19. Question 19

    Identify the INCORRECT statement for the universal law of gravitation.
    1. It is the force that binds us to earth.
    2. It is the force causing tides due to the stars and earth.
    3. It is the force that keeps motion of planets around the Sun.
    4. It is the force that assists motion of the moon around earth.
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  20. Question 20

    Identify the correct statement about gravity.
    1. The unit of g is the same as that of acceleration
    2. The unit of g is the same as that of velocity
    3. The unit of g is the same as that of mass.
    4. The unit of g is the same as that of friction.
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