Column A
What is energy?
the ability to do work or cause a change
What is sound energy?
energy you hear as a result of vibrations moving through the air and reaching your ear drum
What is chemical energy?
stored potential energy released through chemical reactions
All energy can be put into what two categories?
kinetic and potential
What is an example of mechanical energy?
kicking a soccer ball into a net; other examples accepted
What is the law of conservation of energy?
Energy cannot be created or destroyed. It can only change form.
What is thermal energy?
the total kinetic energy of the molecules in a substance
What is radiant energy?
the energy of light
What travels through wires?
an electric current
If you put a mug of water in the microwave for 2 minutes, what will happen to the molecules in the water?
the molecules will move faster and have more kinetic energy
How does light move?
in a straight line
What is a real world example of one type of energy being converted to another type of energy?
many correct answers
Where can we find electrical energy in nature?
lightning; static; other examples accepted
Sources of light energy often give off what other type of energy as well?
thermal energy
Describe the transformations of energy that occur in a flashlight.
Chemical energy in the battery is converted to electrical energy that flows through the wire, which is then converted into radiant and thermal energy in the light bulb.