Question

kristina demonstrates a toy for her younger brother. the steps to operate the toy are listed below. step 1. push the toy down. step 2. a spring compresses. step 3. release the toy. step 4. the toy jumps into the air. which best describes step 4? elastic potential energy changes to gravitational potential energy. gravitational potential energy changes to elastic potential energy. kristina does work to increase the gravitational potential energy. kristina does work to increase the elastic potential energy.

Explanation:

When the toy is pushed down and spring compresses, elastic - potential energy is stored. When released and the toy jumps up, this elastic - potential energy is converted to gravitational potential energy as the height of the toy increases.

Answer:

Elastic potential energy changes to gravitational potential energy.