Input and Output Energy

Question

A light bulb has output energy of light and heat. List five other appliances. For each appliance, the input energy is electrical. What is output energy?

Answer 1

Energy can take many different forms: heat, light, movement, sound, etc.  Think about what kind of energy comes out when you say, turn on a fan, or maybe play an MP3 file on an Ipod.  What you get out of the device is the output energy.