1. Newton’s First Law is also known as the law of:
(A) Force
(B) Inertia
(C) Acceleration
(D) Reaction
2. Inertia is the tendency of a body to:
(A) Change its direction
(B) Resist change in its state of motion
(C) Increase acceleration
(D) Reduce mass
3. A book on a table remains at rest due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Friction
4. A moving train passenger falls forward when brakes are applied due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Action–reaction
(D) Gravity
5. Greater mass means greater:
(A) Velocity
(B) Energy
(C) Inertia
(D) Pressure
6. Dust comes out of a carpet when beaten because of:
(A) Gravity
(B) Inertia of motion of dust
(C) Inertia of rest of carpet
(D) Friction
7. Which of the following resists change in direction of motion?
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Gravity
8. Newton’s First Law states that a body remains in uniform motion unless:
(A) No force acts on it
(B) A net external force acts on it
(C) Its mass decreases
(D) Its energy vanishes
9. A coin placed on a card over a glass falls into the glass when the card is flicked away due to:
(A) Gravity
(B) Inertia of rest of coin
(C) Inertia of motion of card
(D) Friction
10. The inertia of an object depends on its:
(A) Volume
(B) Mass
(C) Density
(D) Area
11. A stone continues moving when thrown because of:
(A) Inertia of motion
(B) Inertia of rest
(C) Frictional force
(D) Gravity alone
12. A passenger falls backward when a bus starts suddenly because of:
(A) Inertia of motion
(B) Inertia of rest
(C) Inertia of direction
(D) Gravity
13. Which of the following is an example of inertia of direction?
(A) Body at rest
(B) Body in motion resisting stop
(C) Sparks flying tangentially from a grinding wheel
(D) Book on a table
14. Inertia is a property of:
(A) Energy
(B) Matter
(C) Force
(D) Pressure
15. An athlete runs before a long jump due to:
(A) Inertia of direction
(B) Inertia of motion
(C) Inertia of rest
(D) Friction
16. The motion of planets around the Sun can be explained partly by:
(A) Inertia and gravitational force
(B) Friction and pressure
(C) Energy and heat
(D) Reaction force only
17. A rolling ball stops because of:
(A) Inertia of rest
(B) External frictional force
(C) Internal inertia
(D) Gravity only
18. Which instrument works on inertia of rest?
(A) Seismograph
(B) Thermometer
(C) Microscope
(D) Telescope
19. A stone tied to a string moves in a circle. If string breaks, stone flies tangentially due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Gravity
20. A coin kept on a card drops into a glass when card is pulled because of:
(A) Inertia of rest of coin
(B) Inertia of motion of card
(C) Force of friction
(D) Reaction force
21. The First Law explains why astronauts feel weightless in orbit due to:
(A) Lack of mass
(B) Inertia of motion
(C) Directional change
(D) Zero force
22. A heavy object is harder to push because of:
(A) Less friction
(B) Greater inertia
(C) More velocity
(D) Smaller density
23. The First Law can also be called the law of:
(A) Force
(B) Acceleration
(C) Galileo
(D) Uniform motion
24. The inertia of rest means:
(A) Body resists change from rest to motion
(B) Body resists change in motion
(C) Body resists change in direction
(D) Body resists acceleration
25. A person moving in a car falls outward when the car turns due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Action–reaction
26. Newton’s First Law is valid only in:
(A) Accelerated frames
(B) Inertial frames
(C) Rotating frames
(D) Vacuum only
27. An athlete uses spiked shoes to reduce the effect of:
(A) Inertia
(B) Friction
(C) Weight
(D) Gravity
28. A body continues to move uniformly unless:
(A) Energy is lost
(B) Mass decreases
(C) An external force acts
(D) Its shape changes
29. A man jumps from a moving train and falls forward due to:
(A) Inertia of motion
(B) Inertia of rest
(C) Inertia of direction
(D) Friction
30. The measure of inertia is given by:
(A) Velocity
(B) Mass
(C) Volume
(D) Pressure
31. Why is it dangerous to jump from a moving vehicle?
(A) Because of inertia of motion
(B) Because of inertia of rest
(C) Because of gravity
(D) Because of force of friction
32. Inertia of direction is illustrated when:
(A) A passenger falls backward in a bus
(B) A coin falls into a glass
(C) Sparks fly tangentially from a grinding wheel
(D) A ball resists motion from rest
33. The Law of Inertia was first introduced by:
(A) Galileo
(B) Newton
(C) Einstein
(D) Pascal
34. A hammerhead can be tightened on a handle by hitting its bottom on a hard surface because of:
(A) Inertia of motion of hammerhead
(B) Inertia of rest of handle
(C) Inertia of direction
(D) Friction
35. Why is it easier to move an empty cart than a loaded one?
(A) Less friction
(B) Less inertia
(C) More energy
(D) Greater velocity
36. A ball on the car dashboard rolls forward when the car stops due to:
(A) Inertia of motion
(B) Inertia of rest
(C) Inertia of direction
(D) Gravity
37. An astronaut tossing an object in space observes it moves indefinitely due to:
(A) Gravity
(B) Inertia of motion
(C) Lack of friction
(D) Reaction force
38. Why does a body not move if no force acts?
(A) Inertia
(B) Lack of energy
(C) Air pressure
(D) Vacuum
39. A moving fan continues rotating even after switching off due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Gravity
40. Inertia of rest can be observed when:
(A) A passenger falls backward in bus start
(B) A rolling ball stops
(C) A stone flies tangentially
(D) A fan continues to rotate
41. Which has greater inertia?
(A) A pen
(B) A book
(C) A car
(D) A truck
42. A stone lying on ground continues to stay at rest due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Friction
43. A hockey ball moves longer on smooth ice than on rough ground due to:
(A) Less friction and inertia of motion
(B) Inertia of rest
(C) Greater force
(D) Gravity
44. The resistance of a body to start moving is due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Acceleration
45. The branch of mechanics where Newton’s First Law is valid is:
(A) Classical mechanics
(B) Quantum mechanics
(C) Nuclear mechanics
(D) Relativistic mechanics only
46. A coin stays on a cardboard when slowly pulled but falls when jerked due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Gravity
47. The motion of satellites is governed partly by:
(A) Inertia of motion
(B) Inertia of rest
(C) Inertia of direction
(D) Friction
48. A person riding a cycle leans in curves due to:
(A) Inertia of direction
(B) Inertia of rest
(C) Inertia of motion
(D) Gravity
49. Inertia of motion is defined as:
(A) Resistance of body to change its state of motion
(B) Resistance to start moving
(C) Resistance to change direction
(D) Resistance to deformation
50. The Law of Inertia is the foundation of which Newton’s Law?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law