Momentum quiz

Momentum is the _______of an object multiplied by its velocity.

• Momentum

• Speed

• Force

• Mass

Momentum = mass x ______

• Force

• Time

• Velocity

• Mass

A moving object can have a large momentum if it has a large mass, a high speed, or both.

• True

• False

A truck at rest has no momentum at all.

• True

• False

A bowling ball with a mass of 5 kg rolls down a bowling lane at 8 m/s. What is the momentum of the bowling ball?

• 0.6 kg⋅m/s

• 1.6 kg⋅m/s

• 40 kg⋅m/s

• 60 kg⋅m/s

Which has more momentum: a 1000 kg car stopped at a red light or a 20 kg bike moving at 10 m/s?

• car

• bike

• they are equal

• cannot determine using the info provided

A runner has a momentum of 720 kg⋅m/s and is traveling at a velocity of 5 m/s. What is his mass?

• 14.4 kg

• 1400 kg

• 144 kg

• 360 kg

Is momentum a scalar or a vector quantity?

• A Vector
• A Scalar

An object has a momentum of 5 kg m/s and a mass of 2 kg. How fast is it moving?

• 3 m/s
• 10 m/s
• 7 m/s
• 2.5 m/s

Calculate the change in momentum of a 45 kg runner who starts out at 1 m/s and speeds up to 3 m/s.

• 90 kg⋅m/s

• 45 kg⋅m/s

• 135 kg⋅m/s

• 0 kg⋅m/s