PE and KE CBN

Front

What does gravitational potential energy depend on?

Back

Gravitational potential energy depends on the height about the ground and mass of the object.

Front

Can energy be created or destroyed?

Back

No, energy cannot be created or destroyed; it can only be transferred or changed from one type to another.

Front

When do you have the maximum kinetic energy on a roller coaster?

Back

You have the maximum kinetic energy at the very end as you go down each hill.

Front

What happens when you stretch a rubber band?

Back

When you stretch a rubber band, you are storing potential energy.

Front

What happens to kinetic and potential energy in a swinging pendulum?

Back

As a pendulum swings from its highest to lowest position, the potential energy decreases while the kinetic energy increases.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion.

Front

Define potential energy.

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is the formula for gravitational potential energy?

Back

The formula for gravitational potential energy is PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the relationship between kinetic energy and speed?

Back

Kinetic energy is directly proportional to the square of the speed of an object.

Front

What happens to energy in a closed system?

Back

In a closed system, the total energy remains constant; energy can change forms but cannot be lost.