Momentum GCSE Conceptest

What is the momentum of a 2 kg object travelling at 4 m/s?

• 2 kg m/s

• 8 kg m/s

• 0.5 kg m/s

What happens to the total momentum of a firework when it explodes?

• It increases

• It decreases

• It stays the same

What happens to the suitcase's momentum if the conveyor belt goes round a corner?

• It stays the same

• It is not possible to know

• It changes

Trolley A is 4 kg and moving at 3 m/s. It hits Trolley B, which is 2 kg but stationary.

• If only Trolley B moves after the collision, it travels at 4 m/s

• If only Trolley B moves after the collision, it travels at 6 m/s

• If only Trolley B moves after the collision, it travels at 3 m/s

An object with a momentum of 12 kg m/s is travelling at 3 m/s. What is its mass?

• 4 kg

• 0.25 kg

• 36 kg

A suitcase travels on a conveyor belt. What happens to its momentum if the belt speeds up?

• It stays the same

• It decreases

• It increases

An 5 kg object has a momentum of 10 kg m/s. How fast is it travelling?

• 2 m/s

• 50 m/s

• 0.5 m/s

A 3 kg trolley travelling at 2 m/s hits an identical but stationary trolley. They stick and move together.

• The new speed is 1 m/s

• The new speed is 2 m/s

• The new speed is 3 m/s