Which surface would bounce back almost all the light waves that hit it?

Mrs. Vasquez shouts down a well and hears an echo. What causes the echo?

What type of lens is shown?

what is it called when this happens?

Explain what is happening in the picture.

_________________ is the change in direction of light waves as the waves pass from the air into water.  The light appears to bend.

What is the bending of light as it passes from one medium to another called?

Which of the following is an example of refraction?

When light travels from air into water, what happens to its speed?

Which law explains the relationship between the angle of incidence and the angle of refraction?

In an experiment, a beam of light is directed at a glass block. What is the angle between the incident ray and the normal called?

What phenomenon causes a straw in a glass of water to appear broken or bent?

Which of the following materials would cause the most refraction of light?

A prism is used to separate white light into its component colors. What is this process called?