Waves

Question 1

What are transverse waves?

Answer 1

When the displacement is at right angles to the direction of the wave

Question 2

What are longitudinal waves?

Answer 2

When the displacement is parallel to the direction of the wave

Question 3

Example of transverse waves?

Answer 3

Microwaves

Question 4

Example of longitudinal waves?

Answer 4

Sound waves

Question 5

What do travelling waves transfer?

Answer 5

Energy without matter being transferred too

Question 6

What do the particles of the waves do?

Answer 6

Vibrate

Question 7

What is the amplitude of a wave?

Answer 7

The maximum height of a peak e.g. those heat monitors and like that line goes really high if u get what I mean :)

Question 8

How do u know what 1 wavelength looks like?

Answer 8

When it has a peak and a trough??? (trough is same as a peak but the one thats down

Question 9

What is frequency?

Answer 9

The number of wavelengths passing a point each second

Question 10

What is frequency measured in?

Answer 10

Hertz (Hz)

1 Hz = 1 wave per second
10 Hz = 10 waves “
1 kHz = 1000 Hz = 1000 waves “
1 MHz = 1 million Hz = 1000000 waves “

Question 11

A 20 kHz wave makes how many vibrations each second?

Answer 11

20k vibrations (why did I add this)

Question 12

What are wave speeds?

Answer 12

The distance a wave travels each second

Question 13

Water waves and something to do with the depths (I don’t have anything for this in my page, yikes)

Answer 13

^^^ yikes

Question 14

Describe the orbit of a geostationary satellite.

Answer 14

Satellite orbits the earth in 24 hrs in the same direction as the earth spins. Due to earth also taking 24 hrs to spin, from our pov it appears to be in the same spot at all times.

Question 15

Describing the meaning of “Geostationary Satellite”

Answer 15

Same orbital time as the spin of the earth

Question 16

What is geostationary?

Answer 16

1. Takes 24 hrs to orbit
2. Above the equator
3. Appears to be in the same place at all times

Question 17

What is geosynchronous?

Answer 17

1. Takes 24 hrs to orbit
2. Isn’t above the equator
3. Moves in the sky?

Question 18

Use of geostationary satellites?

Answer 18

Relay information constantly between any two points on the Earth’s surface

Question 19

Advantages of geostationary satellites?

Answer 19

1. High data rates - transmit information at the speed of light
2. Can be in constant communication
3. No wires are needed for these microwaves

Question 20

Disadvantages of geostationary satellites?

Answer 20

1. Water in atmosphere can absorb the microwaves and disrupt communication (similar to problematic TV signals when there is heavy rain)
2. Due to the high altitude of the satellite, it’s a long distance for the signal to travel along causing a delay in receiving the communication signal

Question 21

What is the frequency of the reflected wave the same as?

Answer 21

The incident wave

Question 22

What is the wavelength of the reflected wave the same as?

Answer 22

The incident wave

Question 23

Whats the only change in the reflected wave?

Answer 23

The direction

Question 24

What is the speed of the waves in deep water?

Answer 24

Fast

Question 25

What is the speed of the waves in shallow water?

Answer 25

Slow

Question 26

When the wave travels from deep water to shallow water….?

Answer 26

The wave length and speed decreases

Question 27

When the wave travels from shallow water to deep water…?

Answer 27

The wave length and speed increases

Question 28

What happens when the water waves cross the boundary at an angle between deep and shallow water?

Answer 28

Refraction occurs

Question 29

What 2 things happen during refraction?

Answer 29

1. Wave changes speed

2. Waves change direction