Force and laws of motion ( Siraj)

1. A force can:

• a) Change the state of motion of an object

• b) Change the shape of an object

• c) Both (a) and (b)

• d) None of the above

2. Newton’s first law of motion states that:

• a) An object will remain at rest or in uniform motion unless acted upon by an external force

• b) Force is equal to mass times acceleration

• 
  
  c) For every action, there is an equal and opposite reaction

• d) Momentum is conserved in a collision

3. The SI unit of force is:

• a) Newton

• b) Joule

• c) Kilogram

• d) Watt

4. Which of the following is an example of Newton’s third law?

• a) A ball rolling on the ground stops due to friction

• b) A rocket moves forward by expelling gases backward

• c) A person falling off a moving bus

• 
  d) An object at rest remains at rest

5. The force required to accelerate a 2 kg mass by 3 m/s² is:

• a) 2 N

• b) 3 N

• c) 6 N

• d) 9 N

6. When a person jumps from a boat, the boat moves backward due to:

• a) Newton’s first law

• b) Newton’s second law

• c) Newton’s third law

• d) Law of conservation of energy

7. A moving car suddenly stops, and the passengers tend to move forward due to:

• a) Inertia

• 
  b) Momentum

• c) Acceleration

• d) Action-reaction force

8. The tendency of an object to resist a change in its state of motion is called:

• a) Force
  

• b) Momentum

• c) Inertia

• d) Acceleration

9. The second law of motion gives the relationship between:

• a) Force and velocity

• b) Force and acceleration

• c) Acceleration and momentum

• d) Momentum and mass

10. A truck and a car moving with the same velocity collide with a wall. Which of the following statements is true?

• a) The truck experiences greater acceleration than the car.

• b) The car experiences greater acceleration than the truck.

• 
  c) Both experience the same acceleration.

• 
  d) Acceleration is independent of mass in a collision.