What happens when two or more objects come into contact with each other?

• They generate electricity.

• They stop moving.

• A transfer of momentum and kinetic energy occurs.

• They bounce off each other.

Tags

NGSS.HS-PS2-2

Which of the following is an example of a collision?

• Reading a book

• Hitting a baseball

• Watching TV

• Listening to music

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

NGSS.HS-PS2-3

In an elastic collision, what is conserved?

• Only momentum

• Only kinetic energy

• Both momentum and kinetic energy

• Neither momentum nor kinetic energy

Tags

NGSS.HS-PS2-2

Why are pool tables and billiard balls good examples of elastic collisions?

• They are used in sports.

• They are very heavy.

• They reduce the effects of friction.

• They are made of rubber.

Tags

NGSS.HS-PS2-2

What happens to the cue ball when it hits a resting 8-ball in an elastic collision?

• It splits into two.

• It bounces back.

• It comes to a rest.

• It continues moving.

Tags

NGSS.HS-PS2-2

In an inelastic collision, what happens to kinetic energy?

• It remains unchanged.

• It increases.

• It is conserved.

• It is lost.

What is a clear example of an inelastic collision?

• Hitting a baseball

• Playing pool

• A car crash

• Bouncing a basketball

Tags

NGSS.HS-PS2-2

In an inelastic collision, what happens to the colliding bodies?

• They stop moving.

• They generate electricity.

• They become entangled or stuck together.

• They bounce off each other.

Tags

NGSS.HS-PS2-3

In the car crash example, what is the final velocity of the combined wreckage if car A was moving at 10 meters per second?

• 10 meters per second

• 5 meters per second

• 15 meters per second

• 0 meters per second

Tags

NGSS.HS-PS2-2

What equation is used to calculate the final velocity after an inelastic collision?

• Pythagorean theorem

• Conservation of momentum equation

• Newton's second law

• Conservation of energy equation

Tags

NGSS.HS-PS2-2