Laws of Motion One Mark Questions

10th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 25
    15 x 1 = 15
  1. Inertia of a body depends on 

    (a)

    weight of the object

    (b)

    acceleration due to gravity of the planet

    (c)

    mass of the object

    (d)

    Both a & b

  2. The unit of ‘g’ is m s-2. It can be also expressed as

    (a)

    cm s-1

    (b)

    N kg-1

    (c)

    N m2 kg-1

    (d)

    cm2 s-2

  3. One kilogram force equals to

    (a)

    9.8 dyne

    (b)

    9.8 × 104 N

    (c)

    98 × 104 dyne

    (d)

    980 dyne

  4. The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

    (a)

    4 M

    (b)

    2 M

    (c)

    M/4

    (d)

    M

  5. Study of moving bodies under the action of forces ______

    (a)

    Statics

    (b)

    Kinematics

    (c)

    Dynamics

    (d)

    Mechanics

  6. The resistance of a body to change its state of rest is called

    (a)

    inertia of rest

    (b)

    inertia of motion

    (c)

    momentum

    (d)

    inertia of direction

  7. The resistance of a body to change its state of motion is called

    (a)

    force

    (b)

    momentum

    (c)

    inertia of motion

    (d)

    inertia of direction

  8. The act of cleaning a carpet by heating it with a stick is an example for inertia of

    (a)

    motion

    (b)

    direction

    (c)

    rest

    (d)

    momentum

  9. A luggage is usually tied with a rope on the roof of the buses due to

    (a)

    inertia of motion

    (b)

    inertia of direction

    (c)

    inertia of rest

    (d)

    momentum

  10. Inertia is a _______

    (a)

    property of matter

    (b)

    type of force

    (c)

    the speed of an object

    (d)

    none of the above

  11. A & B are two objects with masses 100 kg & 75 kg respectively, then _______

    (a)

    both will have same inertia

    (b)

    B'will have more inertia

    (c)

    A will have more inertia

    (d)

    both will have less inertia

  12. The SI unit of force is

    (a)

    energy

    (b)

    joule

    (c)

    newton

    (d)

    dyne

  13. A force is applied by direct physical contact between two bodies is

    (a)

    Contact force

    (b)

    Non - contact force

    (c)

    Balanced force

    (d)

    Unbalanced force

  14. A body is said to be under balanced force when the resultant force applied on that body is

    (a)

    zero

    (b)

    infinite

    (c)

    ore

    (d)

    none

  15. Acceleration of an object will increase as the net forces increases depending on its

    (a)

    volume

    (b)

    mass

    (c)

    shape

    (d)

    density

  16. 5 x 1 = 5
  17. ___________ is used to change the speed of car.

    ()

    Gear

  18. A man of mass 100 kg has a weight of ___________ at the surface of the Earth

    ()

    980 N

  19. ______ deals with the motion of bodies without considering the cause of motion.

    ()

    Kinematics

  20. Kinetics deals with the motion of bodies considering the _______

    ()

    cause of motion

  21. According to Aristotle, a moving body naturally comes to rest without any external force is termed as _______

    ()

    natural motion

  22. 5 x 1 = 5
  23. Newton’s I law

  24. (1)

    Law of force

  25. Newton’s II law

  26. (2)

    stable equilibrium of an object

  27. Principle of moments

  28. (3)

    Rotating force

  29. Torque

  30. (4)

    Sum of clockwise moments = sum of anticlockwise moments

  31. Gravitational force

  32. (5)

    GM \(\frac { m }{ { R }^{ 2 } } \)

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