Momentum Review

A car collides with a bike. Total momentum before the before the collision = 20. After the collision is the bike's momentum = 5. What is the momentum of the car?

• 5

• 20

• 15

• 25

Tags

NGSS.HS-PS2-2

Momentum = ?

• speed X mass

• mass X momentum

• momentum X speed

• mass X velocity

Tags

NGSS.HS-PS2-2

A deer collides with a bike? The deer's momentum before the collision is 15. The bike's momentum before the collision is 35. Select the correct statement.

• The velocity of the deer after the collision is 15.

• The deer will have the exact same momentum after the collision.

• The total momentum of the deer and bike after the collision is 50.

• The total momentum after the collision will be negative.

Tags

NGSS.HS-PS2-2

Calculate the momentum:

The ball's velocity is 5 m/s. The ball has a mass of 20.

• 25

• 15

• 100

• -15

Tags

NGSS.HS-PS2-2

Two bears collide. Which statement is true?

• Bear 1 has more momentum than bear 2 before the collision.

• Bear 2 has more momentum than bear 1 before the collision.

• Both bears have the same momentum before the collision.

• Bear 2 is moving faster than bear 1 before the collision.

Tags

NGSS.HS-PS2-2

What happens after the collision?

• Their total momentum decreases.

• Their total momentum increases.

• The bears move forward with a positive velocity.

• Bear 2 stops.

Tags

NGSS.HS-PS2-2

There is something wrong with this conservation diagram. What should it show?

• Bear 1 should have no momentum after the collision.

• The bears should have more momentum after the collision.

• The bears' total momentum after the collision should be 2.

• The bears' total momentum after the collision should be -2.

Tags

NGSS.HS-PS2-2

In the game of pool, a white ball is hit with a stick. It rolls into the other balls of different colors. All of the balls have the same mass. What will happen when the white ball hits the red ball?

• The white ball will bounce back toward the stick because the force of the red ball pushes it back.

• The white ball will slow down but keep moving forward because the red ball took most of its energy.

• The white ball will stop because its momentum is transferred to the red ball.

• The white ball will have negative momentum because it will bounce backwards.

Tags

NGSS.HS-PS2-2

You try to move as quickly as possible to dodge a ball be thrown at your face. You are too slow, and ball impacts your face. Select the incorrect statement below:

• The velocity of the ball will be different after the collision.

• The total velocity of you and the ball will be the same before and after the collision.

• The total momentum will be the same before and after the collision.

• The total velocity of you and the ball will be not be conserved.

Tags

NGSS.HS-PS2-2

Momentum and force are the same things.

• True

• False

Tags

NGSS.HS-PS2-2