Explain why you can hear two people talking even after they walk around a corner.

Imagine that you overhear two teens talking about a great new CD that everyone "has to have." Analyze the possible sources of this influence.

Water waves produced by a speed boat strike a floating inner tube. Describe the motion of the inner tube as the waves pass by.

Water waves produced by a speed boat strike a floating inner tube. Describe the motion of the inner tube as the waves pass by.

Explain why sound waves travel faster in liquids or solids than in air.

Describe how the frequency and period of a wave are related.

A wave along a guitar string has a frequency of 440 Hz and a wavelength of 1.5 m. What is the speed of the wave?

Name two wave interactions that can occur when a wave encounters a barrier.

Name a kind of wave that does not require a medium.

Two friends blow two whistles at the same time. The first whistle makes a sound whose frequency is twice that of the sound made by the other whistle. Which sound will reach you first?

Identify the medium for the following waves: a. ripples on a pond b. the sound waves from a stereo speaker c. seismic waves

Refraction occurs when a wave enters a new medium at an angle because
a. the frequency changes.
b. the amplitude changes.
c. the wave speed changes.
d. None of the above .

Waves transfer a. matter. c. particles. b. energy. d. water.

List some of the disputes mentioned in this lesson. Indicate the dispute and each side's arguments. Choose one dispute and defend one side's arguments.