What energy transformation takes place when you stretch a bungee cord? A.
Kinetic energy transforms into potential energy.

B.
Mechanical energy transforms into sound energy.

C.
Elastic energy transforms into kinetic energy.

D.
Potential energy transforms into elastic energy.

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Current from a charged capacitor lights a bulb. as time goes on the brightness of the