Ch 5: Energy, LT#1-3

Front

What is the definition of energy?

Back

Energy is the ability to do work and cause change.

Front

What are the two types of potential energy?

Back

Gravitational potential energy and elastic potential energy.

Front

Describe the energy transformation of a baseball that is hit, flies through the sky, pauses at the top, and then falls down to the ground.

Back

The energy transformation is kinetic energy --> potential energy --> kinetic energy.

Front

What is stored energy called?

Back

Stored energy is called potential energy.

Front

What is the definition of work in terms of energy?

Back

Work is the transfer of energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field.

Front

What is elastic potential energy?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.

Front

How does the height of an object affect its gravitational potential energy?

Back

The gravitational potential energy increases as the height of the object increases.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.