Change of Momentum

Sally runs and jumps off of a diving board and lands on a tube (she stays in the tube).  The collision between Sally and the tube is

• Elastic

• Explosive

• Inelastic

• Completely absurd

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

• Skater 1 experiences a greater change in momentum

• Skater 2 experiences a greater change in momentum

• Skater 1 has a greater speed than Skater 2

• Skater 1 experiences a greater force

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

In any collision (crash) the ______ is ALWAYS constant

• Total Momentum

• total speed

• total Velocity

• Energy

Tags

NGSS.HS-PS2-2

In a perfectly inelastic collision, ______ is conserved. 

• Momentum only

• Kinetic Energy only

• Both momentum and kinetic energy

Tags

NGSS.HS-PS2-2

Two soccer balls collide. The first soccer ball hits the second soccer ball which was at rest on the ground. What is true of the momentum?

• The total momentum of the isolated system stays the same.

• The total momentum of the isolated system decreases.

• The total momentum of the isolated system increases.

• The total momentum of the isolated system equals zero since the second soccer ball was at rest.

Tags

NGSS.HS-PS2-2

A 5.0 kg mass has a velocity change from 8.0 m/s east to 2.0 m/s east. Find the object's change in momentum.

• -30 kg m/s west

• 10 kg m/s west

• -40 kg m/s west

• -16 kg m/s west

Tags

NGSS.HS-PS2-2

Due to the difficulty of stopping an oil tanker, the engines are cut off around 25 km from port. Why are these oil tankers difficult to stop?

• The oil tanker has a huge mass which results in an enormous momentum. The vessel needs a long distance to decrease its velocity.

• The oil tanker has a small mass which results in an enormous momentum. The vessel needs a long distance to decrease its velocity.

• The oil tanker has a huge mass which results in a small momentum. The vessel needs a long distance to decrease its velocity.

• The oil tanker has a huge mass which results in an enormous momentum. The vessel needs a long distance to increase its velocity.

Tags

NGSS.HS-PS2-1

A cannon with a mass of 1455 kg fires a 9.4 kg cannon ball with a velocity of 92 m/s. With what velocity does the cannon move after the cannon ball is fired?

• -0.59 m/s

• 0.59 m/s

• -1.68 m/s

• 1.68 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

A car of mass 1000 kg is moving with a velocity of 20 m/s. It suddenly stops in 5 seconds. What is the change in momentum of the car?

• A) 20000 kg m/s

• B) 0 kg m/s

• C) -20000 kg m/s

• D) 4000 kg m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Which of the following best describes the principle of conservation of momentum?

• A) Momentum is always conserved in elastic collisions only.

• B) Momentum is conserved in both elastic and inelastic collisions.

• C) Momentum is never conserved in any type of collision.

• D) Momentum is only conserved in inelastic collisions.

Tags

NGSS.HS-PS2-2