Impulse Momentum Collisions

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

• -2.5 N⋅s

• -10 N⋅s

• -18 N⋅s

• -45 N⋅s

Tags

NGSS.HS-PS2-1

Juan observed a collision in a lab where the kinetic energy after the collision was equal to the kinetic energy before the collision. This type of collision is

• Inelastic

• Elastic

• Explosion

Tags

NGSS.HS-PS3-2

When is momentum conserved in a collision?

• When the collision is inelastic.

• When the collision is elastic.

• When the collision is inelastic OR elastic but never an explosion.

• All collisions.

Tags

NGSS.HS-PS2-2

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

The impulse is ______ the change in momentum

• greater than
• equal to
• less than
• always double

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

Determine the momentum of 1,000-kg car moving northward at 20 m/s.

• 20,000 N
• 20,000 Joules
• 20,000 Kg * m/s
• 20,000 kg * m/s north

Tags

NGSS.HS-PS2-2

A golfer strikes a golf ball of mass 0.05 kg, and the time of impact is 1 ms (millisecond). If the ball acquires a velocity of 70 m/s, calculate the average force exerted on the ball.

• 3500 N

• 3.5 N

• 1400 N

• 70000 N

Tags

NGSS.HS-PS2-1

A big fish swims upon and swallows a small fish at rest. After lunch, the big fish has less

• momentum
• velocity
• mass

Tags

NGSS.HS-PS2-2

Which object listed below has the greatest momentum?

• A 0.05 kg object rolling at 0.2 m/s.
• A 0.15 kg object rolling at 2 m/s.
• A 0.15 kg object rolling at 1 m/s
• A 0.4 kg object rolling at 2 m/s.

Tags

NGSS.HS-PS2-2