When light travels from one medium to another, its direction
can change. This is called

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

The two required components for a generator are