Impulse Momentum

Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds. Which cart experiences the greatest impulse?

• Cart B

• Cart A

• they are the same

Tags

NGSS.HS-PS2-1

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 ______.

• 2.5 N s

• 10 N s

• -18 N s

• -45 N s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Which has more momentum?

• A hummingbird zipping down the street (v = 1 m/s)

• A bus stopped at a stop sign

• A bus barreling down the road (v = 10 m/s)

• A hummingbird hovering at a feeder

Tags

NGSS.HS-PS2-2

A bicycle has a momentum of 24 kg•m/s. What momentum would the bicycle have if it had the twice the mass and was moving with twice the speed?

• twice the momentum; 48 kg*m/s

• 1/2 the momentum; 12 kg*m/s

• 4x the momentum; 96 kg*m/s

• 1/4 the momentum; 6 kg*m/s

Tags

NGSS.HS-PS2-2

Which of the following best describes impulse?

• The change in velocity of an object

• The change in momentum of an object

• The force applied to an object over a distance

• The energy transferred to an object

Tags

NGSS.HS-PS2-2

How does applying a larger force over a shorter time period affect the impulse delivered to an object?

• It decreases the impulse.

• It increases the impulse.

• It has no effect on the impulse.

• It changes the direction of the impulse.

Tags

NGSS.HS-PS2-1

A 0.2 kg ball is thrown with a velocity of 15 m/s. What is the impulse required to stop the ball?

• 3 Ns

• 0 Ns

• 15 Ns

• 30 Ns

Tags

NGSS.HS-PS2-2

A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?

• 8 m/s

• 32 m/s

• 0.125 m/s

• 18 m/s

Tags

NGSS.HS-PS2-2

A 3 kg cart has a momentum of 18 kg m/s. What is its velocity?

• 6 m/s

• 54 m/s

• 0.17 m/s

• 15 m/s

Tags

NGSS.HS-PS2-2

An egg is thrown at a wall and at a bed sheet. The egg's impulse will be

• Greater for the wall collision

• Greater for the sheet collision

• impulse is equal

Tags

NGSS.HS-PS2-3