Impulse

Definition of impulse:

• The time integral of net force that causes Change in momentum

• The product of mass and velocity

• The ability to do work

• the rate of increase of speed or the rate of change of velocity

Tags

NGSS.HS-PS2-2

Impulse is represent by which symbol?

• I

• J

• P

• I and J

All of the following are examples of impulse except..

• A car moving with constant speed

• A tennis ball hitting a racket

• A pencil getting stuck to the ceiling

• A hammer bouncing of a nail

Tags

NGSS.HS-PS2-2

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

• 5 N . s

• 500 N .s

• 500 N/s

• 50 N.s

The impulse is _____the change in momentum

• Greater than

• Equal to

• Less than

• Always double

Tags

NGSS.HS-PS2-2

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

• 60,000 N

• 40,000 N

• 20,000 N

• 80,000 N

Tags

NGSS.HS-PS2-1

If you push an object with a force of 10 N for 5 seconds , you will change it’s momentum by:

• 2 N s

• 50 n s

• 2 N/s

• 50 N/s

Tags

NGSS.HS-PS2-2

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.

• -2.5

• -10

• -18

• -45

Tags

NGSS.HS-PS2-1

The units for Impulse are

• N/s
• N.s
• N
• m/s

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.
Calculate the impulse on the ball.

• 1 N.s
• 6 N.s
• 66 N.s 
• None of these

Tags

NGSS.HS-PS2-1