Momentum Calculations

The law of conservation of momentum states that, 

• p before is less than p after
• p before is the same as p after
• p before is more than p after

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

• 0.1 kg-m/s
• 1 kg-m/s
• 10 kg-m/s
• 100 kg-m/s

A 10kg toy truck moves at 5m/s East. It collides head-on with a 5kg toy car moving 10 m/s moving west. What is the total momentum of the system?

• 0 kgm/s
• 30 kgm/s
• 50 kgm/s
• 10 kgm/s

When the speed of an object is doubled, its momentum

• remains unchanged in accord with the conservation of momentum.
• doubles
• quadruples
• decreases

Momentum is a ____________________ quantity

• science
• scalar
• vector
• energy

T/F:  A big truck will always have more momentum than a small car.

• True
• False

The momentum of an object depends upon the object's ___________&_____________.  

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

Which of the following correctly defines momentum?

• mass in motion
• how difficult it is to stop a body
• product of a body's mass and velocity
• all of these are correct

What is the property of a moving object that causes it to keep moving?

• Momentum
• Acceleration
• Speed
• resistance