NEET UG - Force and inertia, Newtons first law of motion Online Test (MCQ Quiz)

1. Which of the following best describes inertia?

A) The tendency of an object to resist changes in its state of motion. B) The force required to change an object's velocity. C) The acceleration of an object due to gravity. D) The momentum of a moving object.

2. Newton's first law of motion is also known as the law of:

A) Momentum B) Action and Reaction C) Inertia D) Conservation of Energy

3. An object at rest will remain at rest unless acted upon by:

A) A constant velocity B) An external force C) A balanced force D) Its own momentum

4. A body in uniform motion will continue in uniform motion unless acted upon by:

A) An external force B) Gravity C) Friction D) A change in temperature

5. Which statement is consistent with Newton's first law of motion?

A) An object in motion always slows down due to friction. B) An object's velocity changes only if a net force acts on it. C) An object at rest will spontaneously start moving. D) Force is directly proportional to velocity.

6. Inertia is a measure of:

A) The speed of an object. B) The mass of an object. C) The acceleration of an object. D) The force acting on an object.

7. Why does a passenger in a moving car lurch forward when the car suddenly brakes?

A) Due to the car's acceleration. B) Due to the passenger's inertia. C) Due to the braking force. D) Due to the seatbelt's constraint.

8. A heavy object is harder to move from rest than a light object because:

A) It has more velocity. B) It has greater inertia. C) It experiences a larger gravitational force. D) It has a higher temperature.

9. What is the unit of force in the SI system?

A) Joule B) Watt C) Newton D) Pascal

10. According to Newton's first law, if the net force on an object is zero, then its acceleration is:

A) Equal to the net force. B) Constant and non-zero. C) Zero. D) Dependent on its mass.

11. An object moving in a straight line at a constant speed will continue to do so if:

A) It experiences a net force. B) It experiences no net force. C) It is acted upon by gravity. D) It is in a vacuum.

12. Which of the following examples best demonstrates inertia?

A) A ball rolling down a hill. B) A rocket launching into space. C) A tablecloth being quickly pulled from under dishes. D) A car turning a corner.

13. If an object is accelerating, what can be said about the net force acting on it?

A) The net force is zero. B) The net force is non-zero. C) The net force is constant. D) The net force is equal to its mass.

14. Inertia is directly proportional to:

A) Velocity B) Acceleration C) Force D) Mass

15. Consider a book resting on a table. According to Newton's first law, what will happen to the book if no forces act on it?

A) It will start moving to the right. B) It will start moving to the left. C) It will remain at rest. D) It will fall through the table.

16. A spaceship traveling in outer space, far from any gravitational sources, will continue moving at a constant velocity if:

A) Its engines are firing. B) It encounters an asteroid. C) No external forces act on it. D) It is within a magnetic field.

17. The tendency of a body to oppose changes in its state of motion is called:

A) Momentum B) Force C) Inertia D) Velocity

18. Which law states that for every action, there is an equal and opposite reaction?

A) Newton's First Law B) Newton's Second Law C) Newton's Third Law D) Law of Conservation of Momentum

19. If a car is moving at a constant velocity, what is the net force acting on it?

A) Equal to the driving force. B) Equal to the frictional force. C) Zero. D) Equal to the car's mass.

20. Inertia is an intrinsic property of matter. Which of the following is a direct consequence of inertia?

A) Objects accelerate when a force is applied. B) Objects resist changes in their motion. C) Objects possess momentum. D) Objects exert equal and opposite forces.

21. A person standing on a moving bus tends to fall backward when the bus suddenly starts moving forward. This is an example of:

A) Newton's Second Law B) Inertia of rest C) Inertia of motion D) Newton's Third Law

22. What is the primary factor determining the inertia of an object?

A) Its speed B) Its acceleration C) Its mass D) Its temperature

23. When a bus suddenly stops, passengers tend to move forward. This is due to:

A) The bus's acceleration B) The passenger's inertia of motion C) The passenger's inertia of rest D) The force of friction

24. Which scenario violates Newton's first law of motion?

A) A satellite in a stable orbit around Earth. B) A book lying on a table. C) A car moving at a constant speed in a straight line. D) A ball thrown upwards, slowing down as it rises.

25. Inertia is the property of matter that causes it to:

A) Produce force B) Resist acceleration C) Generate heat D) Change its state of motion spontaneously

26. If you push a box with a force, and it doesn't move, what does Newton's first law imply about the forces acting on the box?

A) Your push is the only force. B) There are no forces acting on the box. C) The net force on the box is zero. D) The box has very high inertia.

27. A force is defined as an external agent that can change:

A) The mass of an object. B) The inertia of an object. C) The state of motion of an object. D) The temperature of an object.

28. Which of the following statements about force and inertia is correct?

A) Force causes inertia. B) Inertia causes force. C) A force is needed to overcome inertia. D) Inertia is a type of force.

29. When a vehicle turns, passengers are pushed outwards. This is perceived as a force, but is actually a consequence of:

A) The vehicle's acceleration B) The passenger's inertia C) The turning force D) Centrifugal force (an apparent force)

30. A body is in equilibrium when:

A) It is at rest. B) It is in uniform motion. C) The net force acting on it is zero. D) All of the above.

31. Which of the following has the largest inertia?

A) A feather B) A car C) An airplane D) A mountain

32. Newton's first law is fundamental to understanding:

A) The relationship between force and acceleration. B) The concept of momentum. C) The conditions under which an object's velocity remains constant. D) The nature of gravitational fields.

33. A stationary object will remain stationary if:

A) It is subject to gravity. B) The net force acting on it is zero. C) It is acted upon by a constant force. D) It has a large mass.

34. The resistance of an object to a change in its state of motion is directly related to its:

A) Velocity B) Acceleration C) Momentum D) Mass

35. If an object is moving with constant velocity, what can be concluded about the net force?

A) The net force is equal to the velocity. B) The net force is non-zero and constant. C) The net force is zero. D) The net force is equal to its mass.

36. Which of the following is an example of inertia of motion?

A) A person jumping out of a moving train. B) A car not starting. C) A book falling from a shelf. D) A stationary swing moving.

37. When a bus starts suddenly, a passenger is thrown backward. This is an illustration of:

A) Newton's second law B) Inertia of rest C) Inertia of motion D) Newton's third law

38. The law of inertia is most directly applicable to situations where:

A) Forces are unbalanced. B) Objects are accelerating. C) Objects are at rest or moving with constant velocity. D) Friction is the dominant force.

39. What happens to the inertia of an object if its mass is doubled?

A) It remains the same. B) It is halved. C) It is doubled. D) It becomes zero.

40. An object's inertia is a measure of its resistance to changes in its:

A) Mass B) Velocity C) Acceleration D) Potential energy

41. If a net force of zero acts on an object, the object's acceleration will be:

A) Equal to the net force. B) Non-zero and constant. C) Zero. D) Dependent on velocity.

42. Which of the following is a scalar quantity?

A) Force B) Velocity C) Acceleration D) Mass

43. A passenger in a moving car is less likely to be thrown forward if they are wearing:

A) A helmet B) A seatbelt C) Loose clothing D) Sunglasses

44. Newton's first law of motion implies that an object will continue in its current state of motion unless acted upon by a:

A) Balanced force B) Friction force C) Gravitational force D) Net external force

45. The property of matter that makes it difficult to change its speed or direction is called:

A) Momentum B) Inertia C) Force D) Energy

46. If a planet has a large mass, it will have:

A) Low inertia B) High inertia C) Zero inertia D) Constant velocity

47. A body is said to be in a state of rest if its position does not change with respect to:

A) Time B) A reference point C) Itself D) Its mass

48. Which of the following conditions describes a state of equilibrium for an object?

A) The object is at rest. B) The object is moving with constant velocity. C) The net force acting on the object is zero. D) All of the above.

49. Inertia is the resistance to change in:

A) Mass B) Weight C) State of motion D) Shape

50. According to Newton's first law, if the net force on an object is zero, it means that:

A) The object must be at rest. B) The object must be moving at a constant velocity. C) The object's acceleration is zero. D) All of the above are possible scenarios.

Force and inertia, Newtons first law of motion - Online Test

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