Chapter 12 Review Energy

What is a device that changes electricity or other forms of energy into mechanical energy?

What is the bending of light as it passes from one transparent material into another?

What is a back-and-forth motion?

What is the sudden movement of electric charges from one object to another object?

What is a path through which electric current can flow?

What is a wave that transfers sound through matter called?

What formed when electric current flows through wire wrapped in coils around an iron bar?

What is a device that produces alternating current by spinning an electric coil between the poles of a magnet?

What do sound waves travel through?

Sound travels most quickly through (a) ______________.

What kind of an object completely blocks light from passing through?

We use sound waves in a _______ device to detect objects under water.

What kind of circuit is shown below?

Which of these three metals is not attracted to a magnet?

What is a tool used to refract, or bend, light?

What is the number of wavelengths that pass a reference point in a given amount of time?

What kind of colored clothing makes a person feel hotter in the summer?

All matter is made up of tiny particles called ___________.

What kind of circuit is shown below?

What is the area of magnetic force around a magnet called?

Like poles on a magnet will _____________ each other.

Light travels more slowly through materials that are ____________.