Physical Science Chapter 11: Waves, Sound, and Light

Vocabulary Words	Objective Questions
11-1 What are waves?	page 316
wave mechanical wave transverse wave compressional wave electromagnetic wave crest trough compression rarefaction	How is throwing a ball different from a wave? What is carried by a wave? What are the two kinds of mechanical waves? How do transverse waves differ from compressional waves? What is the major advantage electromagnetic waves have over mechanical waves?
11-2  Wave Properties	page 321
amplitude wavelength frequency	What is the relationship between amplitude and energy? (hint: inverse or direct)  wavelength and energy?   frequency and energy? How is frequency of a wave measure? What effect does the differn materials have on the speed of a wave?
11-3  Wave Behavior	page 332
reflection refraction diffraction interference constructive interference destructive interference	When does reflection occur? What happens when a wave changes direction? What produces a rainbow? When does interference occur? How can you use interference to improve the world around you?