Basic Impulse

Which of the following is a change in momentum?

• Impulse

• Force

• Velocity

• Mass

The units of impulse are _______.

• kg m/s

• kg

• m/s

• N

The unit for momentum is ______

• kg m/s

• kg

• m/s

• N

For momentum and impulse, direction matters.

• True

• False

Find the impulse of an object that has 40 kg m/s of momentum and speeds up until it has 80 kg m/s of momentum.

• 40 kg m/s

• 120 kg m/s

• 2 kg m/s

• 0.5 kg m/s

Find the impulse for an object that has 30 kg m/s of momentum and speeds up until it has 90 kg m/s of momentum.

• 60 kg m/s

• 120 kg m/s

• 3 kg m/s

• 0.33 kg m/s

A tennis ball has 50 kg*m/s of momentum when it hits a wall and bounces back with 35 kg*m/s. What is the impulse?

• 85 kg*m/s

• 15 kg*m/s

• 1,750 kg*m/s

• 1.43 kg*m/s

A person on a trampoline comes down with 400 kg*m/s of momentum and bounces up with 300 kg*m/s. What is the impulse?

• 700 kg*m/s

• 100 kg*m/s

• 120,000 kg*m/s

• 0.75 kg*m/s