1. Inertia is the tendency of a body to:
(A) Resist change in motion
(B) Increase acceleration
(C) Decrease velocity
(D) Create force
2. Which law of motion is also called the law of inertia?
(A) Newton’s First Law
(B) Newton’s Second Law
(C) Newton’s Third Law
(D) Law of Gravitation
3. Inertia depends directly on:
(A) Velocity
(B) Mass
(C) Force
(D) Acceleration
4. Greater the mass of an object, greater is its:
(A) Force
(B) Inertia
(C) Acceleration
(D) Displacement
5. A passenger moves forward in a bus when it stops suddenly due to:
(A) Friction
(B) Inertia of motion
(C) Inertia of rest
(D) Gravity
6. A body continues in its state of rest due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Momentum
7. The tendency of a moving body to keep moving in the same straight line is:
(A) Inertia of direction
(B) Inertia of rest
(C) Inertia of motion
(D) Frictional force
8. Which example demonstrates inertia of rest?
(A) Dust falling off a carpet when shaken
(B) Passenger thrown forward in a moving bus
(C) A car taking a turn and passengers move sideways
(D) Earth revolving around the sun
9. Inertia of direction is shown when:
(A) A cyclist takes a sharp turn and leans inward
(B) A car remains parked until pushed
(C) A book stays on a table
(D) A moving ball keeps rolling
10. Inertia is a property of:
(A) Force
(B) Mass
(C) Acceleration
(D) Pressure
11. Seatbelts in cars are designed to counteract:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Inertia of mass
12. Which factor does NOT affect inertia?
(A) Mass of object
(B) Shape of object
(C) Weight of object
(D) Volume of object
13. Inertia is measured using the concept of:
(A) Force
(B) Weight
(C) Mass
(D) Density
14. The heavier a body, the harder it is to:
(A) Start moving
(B) Stop moving
(C) Change its direction
(D) All of the above
15. Which daily activity is an example of inertia?
(A) A ball rolling stops due to friction
(B) Milk spills when a car starts suddenly
(C) Water flows downhill
(D) Air fills a balloon
16. The unit of inertia is:
(A) Joule
(B) Newton
(C) Kilogram
(D) No specific unit
17. The law of inertia explains why astronauts in space:
(A) Cannot feel weight
(B) Remain floating in motion until acted upon
(C) Fall back to Earth
(D) Become weightless
18. Which type of inertia explains why we lean backward when a car accelerates suddenly?
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Inertia of mass
19. Which type of inertia is shown when passengers are thrown outward on a sharp turn?
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Inertia of force
20. Momentum is related to inertia because:
(A) Momentum depends on mass and velocity
(B) Momentum depends only on inertia
(C) Momentum cancels inertia
(D) Momentum is opposite of inertia
21. Which of the following is an application of inertia in sports?
(A) Basketball dribbling
(B) Shot-put throw
(C) Gymnast balance
(D) All of the above
22. A person standing on a moving train falls backward when train stops suddenly due to:
(A) Inertia of direction
(B) Inertia of motion
(C) Inertia of rest
(D) Friction
23. Which body has more inertia?
(A) 2 kg mass
(B) 5 kg mass
(C) 10 kg mass
(D) 20 kg mass
24. Inertia explains why it is harder to push a:
(A) Bicycle than a car
(B) Car than a bicycle
(C) Ball than a feather
(D) Feather than a ball
25. The Earth keeps rotating on its axis due to:
(A) Gravity
(B) Inertia of motion
(C) Inertia of rest
(D) Magnetic pull
26. Inertia is directly proportional to:
(A) Force
(B) Mass
(C) Acceleration
(D) Energy
27. Which property of human body parts increases inertia during movement?
(A) Mass distribution
(B) Shape of joints
(C) Elasticity of muscles
(D) Blood circulation
28. Why does a body at rest remain at rest until force is applied?
(A) Due to inertia of rest
(B) Due to inertia of motion
(C) Due to gravity
(D) Due to momentum
29. During walking, inertia helps maintain:
(A) Balance
(B) Forward motion
(C) Direction of movement
(D) All of the above
30. When a football is kicked, its inertia is overcome by:
(A) Gravitational force
(B) Applied muscular force
(C) Frictional force
(D) Elastic force
31. Which organ of the body is most affected by inertia in vehicle accidents?
(A) Brain
(B) Heart
(C) Kidneys
(D) Lungs
32. Shaking a ketchup bottle to get sauce out is an example of:
(A) Inertia of direction
(B) Inertia of rest
(C) Inertia of motion
(D) Frictional force
33. A rolling ball continues moving until stopped because of:
(A) Inertia of motion
(B) Friction
(C) Gravity
(D) Inertia of rest
34. Athletes lean forward at the start of a race due to:
(A) Inertia of rest
(B) Inertia of direction
(C) Inertia of motion
(D) Gravity
35. The law of inertia was first stated by:
(A) Galileo
(B) Newton
(C) Einstein
(D) Pascal
36. Human body movement training in physiotherapy often deals with:
(A) Reducing inertia
(B) Overcoming inertia
(C) Creating inertia
(D) Eliminating inertia
37. Which condition reduces inertia during walking?
(A) Reduced body mass
(B) Increased body mass
(C) Stronger gravity
(D) Lower velocity
38. A spacecraft continues moving in space without fuel due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Zero gravity
39. The inertia of direction explains:
(A) Why we move forward in a braking bus
(B) Why we move backward in an accelerating bus
(C) Why passengers are thrown sideways in turning car
(D) Why a ball rests on ground
40. Inertia explains why gymnasts:
(A) Maintain spin once initiated
(B) Lose balance quickly
(C) Cannot rotate
(D) Reduce angular speed
41. Which daily example shows inertia of motion?
(A) Clothes stay at rest on a hanger
(B) Stone tied in a string continues in circular path
(C) Passenger thrown forward in braking bus
(D) All of the above
42. Athletes use inertia for:
(A) Long jumps
(B) Hammer throws
(C) Sprint starts
(D) All of the above
43. The relationship between inertia and mass is:
(A) Direct
(B) Inverse
(C) Independent
(D) Random
44. A body cannot change its motion unless acted upon by:
(A) Gravity
(B) Inertia
(C) External force
(D) Internal energy
45. Which type of inertia explains why planets continue orbiting?
(A) Inertia of rest
(B) Inertia of direction
(C) Inertia of motion
(D) Inertia of mass
46. In biomechanics, inertia must be overcome to:
(A) Initiate movement
(B) Stop movement
(C) Change direction
(D) All of the above
47. Shaking your head to dry water is an example of:
(A) Inertia of rest
(B) Inertia of motion
(C) Inertia of direction
(D) Momentum
48. Inertia plays a key role in which rehabilitation activity?
(A) Gait training
(B) Balance exercises
(C) Resistance training
(D) All of the above
49. The reason why heavy athletes have stronger inertia is:
(A) Greater muscle mass
(B) Greater body mass
(C) Greater acceleration
(D) Greater balance
50. Which safety device counters the effect of inertia in vehicles?
(A) Seatbelt
(B) Airbag
(C) Headrest
(D) All of the above