Energy      (Worksheet 2)      Answers

Energy Transfers

When energy is used it does NOT disappear. The energy is simply transferred into other forms of energy.
For example, a light bulb transfers electrical energy into heat and light energy.
A loudspeaker changes electrical energy into sound energy.

 

1. Can you complete the following examples of energy transfers from the selection in the box below?

 

Sound
Electrical
Heat & Light
Heat, Kinetic & Chemical
Kinetic
 

Electrical Energy  -  Hi Fi
a.  Answer: Sound		  
Chemical energy  -  Battery


b. Answer: Electrical
Sound energy  -  Speakers


c.  Answer: Electrical		  
Kinetic energy  -  Generator

d.  Answer: Electrical
 

Chemical energy  -  Log Fire

e.  Answer: Heat & Light		   Gravitational potential energy - movement of water

f.  Answer: Kinetic

Chemical energy (food) - Humans

g.  Answer: Heat, Kinetic, Chemical		  
Elastic potential energy -
Clockwork Mouse

h.  Answer: Kinetic