Waves and the EM spectrum

Question 1

Transverse waves

Answer 1

Vibrations purependicular to diection the wave is travelling in

Question 2

Longitudinal waves

Answer 2

Vibrations are parallel to direction wave travels in

Question 3

What do waves do

Answer 3

Transfer energy without transferring matter

Question 4

How does a wave travel through a medium

Answer 4

Particles in medium vibrate to trasnsfer energy (but stay in the same place overall)

Question 5

Equation for wave speed

Answer 5

(wave speed) = (frequency) X (wavelength)
v = fλ

Question 6

What is the amplitude of a wave

Answer 6

The distance between the rest position and crest or trough of a wave

Question 7

What is the wavelength of a wave?

Answer 7

the distance between the same point on two different wave cycles

Question 8

What is the Frequency?

Answer 8

The number of wave cycles that pass a point in a second

Question 9

What is the period of a wave?

Answer 9

The time it takes (s) for a wave to complete a cycle (1/frequency)

Question 10

What are the three ways waves can react at boundaries?

Answer 10

Absobtion (the wave’s energy is absorbed by the object)
Transmission (The wave travels through the boundary, usually also refracts)
Reflection (The wave is sent back where the angle of incidence is equal to the angle of reflection)