8.1 Collisions Review

Front

True or False? Speed or mass increases lead to kinetic energy increases before a collision.

Back

True

Front

What variable, when changed, will cause the most damage in a collision?

Back

Speed

Front

When the speed of an object doubles, the kinetic energy it has...

Back

quadruples.

Front

A(n) _______ surface will produce more friction.

Back

rough

Front

True or False? The surface temperature will decrease as the friction between surfaces increases.

Back

False

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

How does mass affect kinetic energy?

Back

Increasing mass increases kinetic energy if velocity remains constant.

Front

What happens to kinetic energy if velocity is halved?

Back

Kinetic energy is reduced to one-fourth.

Front

What is the relationship between speed and kinetic energy?

Back

Kinetic energy increases with the square of speed.