Momentum Lesson

Which of these are safety features that reduce momentum change in a car?

• Airbags

• Bumpers

• Crumple zones

• Seatbelts

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

Which is the correct equation for force as it relates to momentum?

• force = change in momentum / time

• force = acceleration / mass

• change in momentum = force / time

• time = time x time²

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

All of these methods increase the ______ ________ for momentum to change which reduces the forces affecting the person.

Tags

NGSS.HS-PS2-3

What is the law of conservation of momentum?

• Momentum decreases in a closed system

• Total momentum of a closed system remains constant if no external forces are acting on it.

• Momentum increases with external forces

• Momentum is not conserved in collisions

Tags

NGSS.HS-PS2-2

The Law of Conservation of Momentum states that the total momentum of a closed system is:

• Increasing over time

• Decreasing over time

• Constant, if no external forces act on it

• Zero

Tags

NGSS.HS-PS2-2

In an inelastic collision, which of the following is true?

• Only momentum is conserved

• Only kinetic energy is conserved

• Both momentum and kinetic energy are conserved

• Neither momentum nor kinetic energy is conserved

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

According to the Law of Conservation of Momentum, in the absence of external forces, the total momentum of a system

• Increases over time

• Decreases over time

• Remains constant

• Becomes zero

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 an elastic collision, which of the following is conserved?

• Only kinetic energy

• Only momentum

• Both momentum and kinetic energy

• Neither momentum nor kinetic energy

Tags

NGSS.HS-PS2-2