Chapter 3 Waves

Question 1

Electromagnetic waves can only move through what?

Answer 1

Space

Question 2

In a transverse wave, what is the measure of the distance from one crest to another crest?

Answer 2

Wavelength

Question 3

In what kind of waves do particles move parallel to the direction the wave travels?

Answer 3

Longitudinal waves

Question 4

The material a wave travels through affects what part of the wave?

Answer 4

Speed

Question 5

The transfer of energy by a wave to the medium through which it travels

Answer 5

Absorption

Question 6

The passage of light through an object

Answer 6

Transmission

Question 7

Waves bounce off a surface during what?

Answer 7

Reflection

Question 8

This occurs when a wave changes direction because of a change in speed

Answer 8

Refraction

Question 9

Describe how a wave’s frequency changes as its wavelength changes

Answer 9

If a wave length increases, the frequency decreases

Question 10

Which direction do the particles of the medium moves when a transverse wave is passing through a medium, and the wave itself move horizontally?

Answer 10

The particles move at right angles to the wave

Question 11

What is the law of refelection?

Answer 11

The angle the wave strikes a surface is the angle the wave is reflected from the surface

Question 12

What is wave interference?

Answer 12

When waves meet and overlap, they combine to make new waves

Question 13

Describe how sound waves are affected by diffraction when they travel through an open door way. Give an example of how this might be experienced by a listener standing outside a noisy room.

Answer 13

If u are standing outside a noisy room and the door opens, sound waves are koving through the doorway by diffraction and then spreading out into the hallway, so the listener will be able to hear