IGCSE Physics Chapter 3 Practice Paper

1. 1. Which list contains only scalar quantities?

• A) acceleration, energy, force, mass

• B) acceleration,force, momentum, velocity

• C) distance, energy, mass, speed

• D) distance, momentum, speed, velocity

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• A

• B

• C

• D

• A

• B

• C

• D

4. 4. Three situations are listed.

1. 1) An object has a resultant force acting on it.
   2) A moving object experiences an impulse.
   3) An object is decelerating.

In which situations is the momentum of the object changing?

• A) 1 and 2 only

• B) 1 and 3 only

• C) 2and 3 only

• D) 1, 2 and3

5. 5. A ball of mass 0.16kg is moving forwards at a speed of 0.50m/s. A second ball of mass 0.10 kg

is stationary. The first ball strikes the second ball. The second ball moves forwards at a speed of

0.50m/s.

What is the speed of the first ball after the collision?

• A) 0.0m/s

• B) 0.19m/s

• C) 0.31m/s

• D) 0.50m/s

6. 6. An object is released from rest and falls to Earth. During its fall, the object is affected by air

• A) constant acceleration, then constant deceleration

• B) constant deceleration, then zero acceleration

• C) decreasing acceleration, then constant deceleration

• D) decreasing acceleration, then zero acceleration

6. 7. A parachutist is falling through the air at terminal velocity.

   Which statement about the parachutist is correct?

• 6. A) Every force acting on the parachutist is equal to zero and his acceleration is equal to zero.

• 6. B) Every force acting on the parachutist is equal to zero and his velocity is equal to zero.

• 6. C) The resultant force acting on the parachutist is equal to zero and his acceleration is equal to

     zero.

• 6. D) The resultant force acting on the parachutist is equal to zero and his velocity is equal to zero.

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D