Waves and EM Spectrum

Question 1

What do waves transfer?

Answer 1

Energy from one place to another

Question 2

What do waves not transfer?

Answer 2

Matter

Question 3

What 2 categories of wave are there?

Answer 3

Transverse

Longitudinal

Question 4

What direction are the oscillations in transverse waves?

Answer 4

Perpendicular to the direction of energy transfer

Question 5

What direction are the oscillations in longitudinal waves?

Answer 5

Parallel to the direction of energy transfer

Question 6

What do transverse waves not always require?

Answer 6

A medium

Question 7

What do longitudinal waves always require?

Answer 7

Medium

Question 8

Examples of transverse waves

Answer 8

Light, X-rays, infrared, water waves

Question 9

Examples of longitudinal waves

Answer 9

Sound, p-waves in earthquakes

Question 10

Examples of mediums

Answer 10

Air, liquid, solid

Question 11

In longitudinal waves, what are compressions?

Answer 11

Regions of high pressure where particles are very close together

Question 12

In longitudinal waves, what are compressions?

Answer 12

Lower pressure, spaced out regions in between compressions

Question 13

What is the amplitude of a wave?

Answer 13

The furthest point a wave vibrates from the centre point

Question 14

What is the wavelength of a wave?

Answer 14

The length of a full cycle of a wave

Question 15

What is the frequency of a wave?

Answer 15

Total number of waves per second in hertz

Question 16

What is 1 hertz in relation to number of waves?

Answer 16

1 wave per second

Question 17

Equations for frequency

Answer 17

Number of oscillations / time

1 / period

Question 18

What is the period of a wave?

Answer 18

Number of defined for one cycle

Question 19

Equation for period

Answer 19

1 / frequency