Harnessing Human Energy Ch. 1 Review

Front

What is potential energy?

Back

Potential energy is the energy stored in an object or system.

Front

What happens to a wind-up toy when it is sitting still and untouched?

Back

A wind-up toy has no energy when sitting still untouched.

Front

What type of energy does a wind-up toy have when it is wound up but not released?

Back

It has potential energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has because it is moving.

Front

What is the relationship between movement and energy?

Back

Whenever something moves or changes, it is because of energy.

Front

Can energy be stored? If so, how?

Back

Yes, energy can be stored in the form of potential energy.

Front

What is an example of potential energy in everyday life?

Back

A drawn bow has potential energy due to the tension in the string.

Front

How does kinetic energy change as an object speeds up?

Back

Kinetic energy increases as the speed of the object increases.

Front

What is the formula for kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.