What type of light has longer wavelengths than microwaves and is felt as heat?

Which type of electromagnetic waves are visible to the human eye?

What is the term for the bouncing back of a wave when it hits a surface through which it cannot pass?

What is the bending of light or sound as it passes through different mediums or materials called?

What is a piece of glass or other see-through material that is curved on one or both sides called?

What term describes the rate at which energy is transferred divided by the area over which the energy is spread?

What is a repeated back and forth or up and down motion, describing how sound moves?

What type of wave does not require a medium through which to travel?

What term describes materials that transmit all light, making it possible to see through them?

What is the term for materials that scatter light and allow partial visibility through them?