Work, Power, Energy Review

Front

What happens to potential energy (PE) and kinetic energy (KE) as a pendulum swings from its highest to lowest position?

Back

The PE decreases while the KE increases.

Front

Where in the trajectory of a water balloon launched off a building does it have the most kinetic energy?

Back

Just before it hits the ground.

Front

What happens to the energy used to swing a bat when it hits a baseball?

Back

It is transferred to the baseball.

Front

What transformation occurs at Niagara Falls?

Back

Potential energy is transformed into kinetic energy.

Front

When do you have maximum potential energy while riding a roller coaster?

Back

At the top of the hill.

Front

Define kinetic energy.

Back

The energy an object possesses due to its motion.

Front

Define potential energy.

Back

The energy stored in an object due to its position or configuration.

Front

What is the formula for kinetic energy?

Back

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

Front

What is the formula for potential energy?

Back

PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

Explain the law of conservation of energy.

Back

Energy cannot be created or destroyed, only transformed from one form to another.