Momentum and Conservation Quiz

What is the momentum of an object that is not moving?

• Equal to its mass times velocity

• Equal to its velocity

• Zero

• Equal to its mass

How do you calculate the momentum of an object?

• By subtracting velocity from mass

• By adding mass and velocity

• By multiplying mass by velocity

• By dividing mass by velocity

A car with a mass of 1,000 kg is moving at 20 m/s. What is its momentum?

• 20,000 kg m/s

• 200 kg m/s

• 2,000 kg m/s

• 20 kg m/s

What happens to the total momentum in a closed system after a collision?

• It remains the same

• It becomes zero

• It decreases

• It increases

In the example of a cannon firing a cannonball, what is the total momentum after firing?

• Double the initial momentum

• Zero

• Equal to the momentum of the cannon

• Equal to the momentum of the cannonball