Which of the following describes what happens when you wind up the spring found in a child’s toy?

Responses

Potential energy used to compress the spring is stored as kinetic energy.
Potential energy used to compress the spring is stored as kinetic energy.

Kinetic energy used to compress the spring is stored as thermal energy.
Kinetic energy used to compress the spring is stored as thermal energy.

Kinetic energy used to compress the spring is stored as chemical energy within the metal of the spring.
Kinetic energy used to compress the spring is stored as chemical energy within the metal of the spring.

Kinetic energy used to compress the spring is stored as elastic potential energy.

Kinetic energy used to compress the spring is stored as elastic potential energy.

The correct response is:

Kinetic energy used to compress the spring is stored as elastic potential energy.