Change in Momentum

Pre- and post-collision information is shown. Identify the collision parameters that are consistent with the indicated change in momentum.

• change in momentum = 15 kg m/s

• change in momentum = 30 kg m/s

• change in momentum = 0 kg

• change in momentum = 7.5 kg m/s

Tags

NGSS.HS-PS2-2

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 velocity than Skater 2

• Skater 1 experiences a greater force

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

When the speed of an object is doubled, its momentum

• remains unchanged in accord with the conservation of momentum.

• doubles

• quadruples

• decreases

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

In any collision (crash) the ______ is ALWAYS constant

• Total Momentum

• total speed

• total Velocity

• Energy

Tags

NGSS.HS-PS2-2

What does the principle of conservation of momentum imply for a closed system?

• The total energy of the system is conserved.

• The total momentum of the system before an event is equal to the total momentum after the event.

• The total mass of the system is conserved.

• The total force acting on the system is zero.

Tags

NGSS.HS-PS2-2

In a collision between two objects, which of the following statements is true regarding momentum?

• The total momentum before the collision is always greater than the total momentum after the collision.

• The total momentum before the collision is equal to the total momentum after the collision.

• The total momentum before the collision is always less than the total momentum after the collision.

• Momentum is not conserved in any type of collision.

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

NGSS.HS-PS2-2

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