Physics, Momentum & Collisions Post Assessment, ReTake

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

Tags

NGSS.HS-PS2-2

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

Tags

NGSS.HS-PS2-2

If 2 objects collide and stick together, what will happen to their velocities?

• velocities will increase
• velocities will decrease
• velocities will stay the same
• none of the above

Tags

NGSS.HS-PS2-2

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

Tags

NGSS.HS-PS2-2

When the speed of an object is doubled, its momentum

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

Tags

NGSS.HS-PS2-2

In this type of collision, objects tend to "stick" together.

• elastic
• inelastic 
• They "stick" together in both types of collisions

Tags

NGSS.HS-PS2-2

A big fish swims upon and swallows a small fish at rest. After lunch, the big fish has less

• momentum
• velocity
• mass

Tags

NGSS.HS-PS2-2

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

Tags

NGSS.HS-PS2-2

The units for Impulse are

• N/s
• N-s
• N
• m/s

Momentum is conserved in this type of collision

• elastic
• inelastic
• momentum is conserved in both types of collisions

Tags

NGSS.HS-PS2-2