Waves

Question 1

Wavelength

Answer 1

The distance between the same two points on a wave (i.e. crest to crest).

Question 2

Frequency

Answer 2

The number of wave cycles that pass a given point per unit of time.

Question 3

Crest

Answer 3

A crest is the point on a wave with the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point in a cycle.

Question 4

Trough

Answer 4

Trough (geology), a long depression less steep than a trench. Trough (meteorology), an elongated region of low atmospheric pressure. Trough (physics), the lowest point on a wave. Trough level (medicine), the lowest concentration of a medicine is present in the body over time.

Question 5

Amplitude

Answer 5

The height of a wave measured from midway between the highest and lowest points

Question 6

Reference line

Answer 6

Definition of reference line. : an arbitrary fixed line (as an x-axis or a polar axis) from which coordinates of a point are computed.

Question 7

Medium

Answer 7

Substances through which something travels.