Waves (ch 17)

Question 1

Crest

Answer 1

The high point of a wave

Question 2

Trough

Answer 2

The low point of a wave

Question 3

Amplitude

Answer 3

The distance from midpoint to crest or trough of a wave

Question 4

Wavelength

Answer 4

The distance from the top of one crest to the top of the next

Question 5

Frequency

Answer 5

The number of vibrations a wave completes in a unit of time

Question 6

Hertz

Answer 6

The unit of frequency

Question 7

Wave speed

Answer 7

Frequency of wavelength

Question 8

Transverse Waves

Answer 8

When the motion of the medium is at right angles to the direction in which the wave travels

Question 9

Longitudinal Waves

Answer 9

When particles oscillate parallel to or along the direction of the wave

Question 10

Medium

Answer 10

Solids, liquids, and gases that sound travels through

Question 11

Compression

Answer 11

Pulse of compressed air

Question 12

Rare

Answer 12

Pulse of low-pressure air//particles are far apart

Question 13

Wave speed formula

Answer 13

Frequency x wavelength

Question 14

Frequency Formula

Answer 14

cycles/second

Question 15

Transverse Wave Example

Answer 15

Rope

Question 16

Longitudinal/Compressional Wave Example (did in class lab)

Answer 16

Slinky

Question 17

Longitudinal/Compressional Wave Example (in general)

Answer 17

Sound Waves

Question 18

Wave

Answer 18

A transfer of energy, no matter

Question 19

Periodic motion

Answer 19

Motion that repeats in regular intervals

Question 20

Period

Answer 20

Time required for one cycle

Question 21

The more energy.. the greater or smaller the amplitude?

Answer 21

The greater

Question 22

Which type of wave does compression happen in?

Answer 22

Longitudinal waves

Question 23

Hertz =?

Answer 23

I cycle/1 second