Impulse

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

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

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-PS2-2

The purpose of crumble zones on a car is to

• decrease time of impact.

• increase force of impact.

• increase the time of impact.

• decrease the impulse during impact.

Tags

NGSS.HS-PS2-3

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

What is the formula for impulse?

What is the change in momentum (impulse)? (+ means rightward direction & - means leftward direction)

• Impulse = +15 N•s

• Impulse = +4 N•s

• Impulse = +7.5 N•s

• Impulse = +8 N•s

• Impulse = +30 N•s

Tags

NGSS.HS-PS2-2

What is the change in momentum (impulse)?

(+ means rightward direction & - means leftward direction)

• Impulse = +1.3 N•s

• Impulse = -2.7 N•s

• Impulse = +4 N•s

• Impulse = -8 N•s

• Impulse = -24 N•s

Tags

NGSS.HS-PS2-2

What is the change in momentum (impulse)? (+ means rightward direction & - means leftward direction)

• Δp = +3 kg*m/s

• Δp = +6 kg*m/s

• Δp = +12 kg*m/s

• Δp = +15 kg*m/s

• Δp = +30 kg*m/s

Tags

NGSS.HS-PS2-2

What is the change in momentum (impulse)? (+ means rightward direction & - means leftward direction)

• Δp = -9 kg*m/s

• Δp = -15 kg*m/s

• Δp = -18 kg*m/s

• Δp = -30 kg*m/s

• Δp = -36 kg*m/s

Tags

NGSS.HS-PS2-2