Momentum and Collisions Review

The total momentum of objects after a collision ____________

• is less than the original momentum before the collision if the collision is inelastic

• is equal to the original momentum, no matter if the collision was elastic or inelastic

• Is more than the original momentum if the collision is perfectly inelastic

• Can vary for each different situation based on the type of collision.

Impulse is defined as ______________________________

• the product of mass and change in velocity

• the product of change in momentum and change in velocity

• the product of mass and change in time

• the product of force and change in time

When a bat hits a ball , the change in momentum of the ball _________________________

• Equals the change of momentum of the bat

• Equals the change of momentum of the bat but is in the opposite direction.

• Is greater than the change of momentum of the bat because it moves at a higher velocity

• is less than the momentum of the bat because it has less mass

In outer space, an astronaut throws his backpack forward in order to move his body __________________.

• Forward

• Left

• Right

• Backward

In an inelastic collision what quantities are conserved?

• momentum

• kinetic energy

• momentum and kinetic energy

• neither momentum or kinetic energy

A collision where objects stick together after hitting is called _________________.

• Elastic

• Inelastic

• Perfectly inelastic

• Partially inelastic

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

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Tags

NGSS.HS-PS2-2

When two objects collide, the P_before is ____________ the P_after.

• more than 
• less than 
• equal to
• unrelated to

Tags

NGSS.HS-PS2-2

What is the equation for an impulse?

• F * t = Δp
• p = m * v
• KE = 0.5 * m * v²
• Δp = p_f - p_i

This picture is an example of ____________

• Elastic Collision
• Inelastic collision

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3