Waves

Question 1

Pulse

Answer 1

A single disturbance that moves through a medium

Question 2

Transverse pulse

Answer 2

Moves perpendicular to the direction in which the pulse is moving

Question 3

Amplitude

Answer 3

The maximum distance the medium is displaced from its rest position

Question 4

Pulse speed

Answer 4

The distance a pulse travels per unit time

Question 5

Principle of superposition

Answer 5

When two disturbances occupy the same space at the same time resulting in a disturbance that is the sum of the two

Question 6

Constructive interference

Answer 6

When two pulses meet they result in a bigger pulse

Question 7

Destructive interference

Answer 7

When two pulses meet they result in a smaller pulse

Question 8

Wave

Answer 8

A continuous disturbance that consists of a train of pulses

Question 9

Transverse wave

Answer 9

A wave where the movement of the particles of the medium is perpendicular to the direction of the wave

Question 10

Crest

Answer 10

Maximum height

Question 11

Trough

Answer 11

Minimum height

Question 12

Wavelength

Answer 12

Distance between any two points that was in phase

Question 13

Period

Answer 13

Time taken to complete one wave

Question 14

Frequency

Answer 14

The number of waves that pass a given point in 1 sec

Question 15

Longitudinal waves

Answer 15

Move parallel to the direction of the wave

Question 16

Compression

Answer 16

A region in a longitudinal wave where the particles are the closest together

Question 17

Rare fraction

Answer 17

A region in a longitudinal wave where the particles are furthest apart