Impulse and Collision Practice Quizizz

Sid kicks a ball with a force of 20 N. The force acts on the ball for 0.2 seconds. What is the impulse on the ball?

• 1 N⋅s

• 4 N⋅s

• 400 N⋅s

Softer landings tend to _?_.

• decrease change in momentum

• increase force

• increase collision time

• increase change in momentum

The difference between a car being stopped by a wall vs. a car being stopped by a hay stack is

• the Impulse on the car hitting the wall is greater

• the change in momentum of the car hitting the wall is greater

• the force on the car hitting the hay stack is greater

• the collision time of the car hitting the hay stack is greater

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

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

The impulse-momentum theorem gives the relationship between an impulse and the change in momentum that results from it. It states...

• the impulse on an object is equal to the change in momentum it causes

• the impulse on a moving object is inversely proportional to the change in momentum that results from it.

• the impulse on an object is greater than the change in momentum it causes

• the impulse on an object is less than the change in momentum it causes

An air bag changes a 60 kg person's speed from 40.0 m/s to 0.0 m/s. What impulse did the person experience?

• 2400 kg.m/s

• 1.5 kg.m/s

• 0.67 kg.m/s

• 1500 kg.m/s

The units for Impulse are (select two)

• N/s

• N·s

• N

• kg-m/s

What will the what will be the momentum of this two car system AFTER they collide?

• less than 10 kg-m/s

• 10 kg-m/s

• more than 10 kg-m/s

• not enough information to determine

Stan is pushing the wall, but it does not budge. According to Newton's 3rd Law of Motion, is the wall experiencing a greater force or is Stan?

• Stan is experiencing more force.

• The unmoving wall is experiencing more force.

• Forces are EQUAL for BOTH of them.