Momentum Quiz

The momentum of a moving car is 1200 kg·m/s east. If it begins to move twice as much, its momentum is _______________.

• 1200 kg·m/s

• 600 kg·m/s

• 2400 kg·m/s

• 400 kg·m/s

What is the relationship between velocity and momentum? Select all that apply.

• Directly

• Inversely

• Positively

• Negatively

Objects with different masses can’t have the same momentum.

• True

• False

When an object speeds up, it gains momentum.

• True

• False

Two cars, one twice as heavy as the other, move down a hill at the same speed. Compared to the lighter car, the momentum of the heavier car is _______________ as much.

• Half

• Twice

• A quarter

• Four times

Momentum is a ____ quantity.

• Scalar

• Vector

In an elastic collision ____________ is conserved within the colliding objects.

• Potential Energy

• Kinetic Energy

What is the momentum of a child and wagon if the total mass of the child and wagon is 22 kg and the velocity is 1.5 m/s east?

• 33 kg·m/s east

• 22 kg·m/s east

• 15 kg·m/s east

• 1.5 kg·m/s east

The parking brake on a 1200 kg automobile has broken, and the vehicle has reached a momentum of 7800 kg·m/s west. What is the velocity of the vehicle?

• 6.5 m/s west

• 7.0 m/s west

• 6.0 m/s west

• 6.8 m/s west

A school bus traveling at 40 km/hr. (11.1m/s) has a momentum of 152625 kg·m/s north. What is the mass of the bus?

• 13750 kg

• 15262.5 kg

• 13762.5 kg

• 15250 kg