impulse and momentum

What does this symbol stand for in an equation?

• change in

• the sum of

• the end of a river

• 3D

Which of the following is the symbol for impulse?

• m

• p

• J

• v

• F

Extending the time of a collision allows you to...

• change the impulse of the collision.

• diffuse the collision.

• increase the force of impact.

• decrease the force of impact.

Tags

NGSS.HS-PS2-3

You are calculating the momentum of a 2 kg toy car moving along the sidewalk at a speed of 0.5 m/s. What would happen to the momentum if you doubled the mass of the car?

• double

• triple

• quadruple

• Momentum would not change.

Tags

NGSS.HS-PS2-2

A baseball bat applies a force of 500 N to a ball for 0.1 seconds. What was the impulse on the ball?

• 5 N x s

• 50 N x s

• 500 N x s

• 5,000 N x s

A car crashes into a barrier with an impulse of 40,000 kg x m/s. The collision took 2 seconds. How much force did the barrier exert?

• 80,000 N

• 60,000 N

• 40,000 N

• 20,000 N

Tags

NGSS.HS-PS2-1

The momentum of 1,200 kg car is 240 N x s. At what velocity is the car traveling?

• 0.2 m/s

• 288,000 m/s

• 5 m/s

Tags

NGSS.HS-PS2-2

A 3 kg skateboard is at rest on a sidewalk. What is its momentum?

• 0 N x s

• 3 N x s

• Not enough information.

Tags

NGSS.HS-PS2-2

A 0.02 kg bug is flying South at 1.5 m/s. What force would stop it in 0.01 second?

• 0.024 N

• 150 N

• 3 N

• 0.75 N

Tags

NGSS.HS-PS2-1

A 0.02 kg bug is flying South at 1.5 m/s. What force would stop it in 0.01 second?

• 0.024 N

• 150 N

• 3 N

• 0.75 N

Tags

NGSS.HS-PS2-1