Waves

Question 1

What is amplitude?

Answer 1

Amplitude is the height of a wave, loudness of a sound wave

Question 2

What is frequency measured in?

Answer 2

Hertz

Question 3

What is volume measured in?

Answer 3

Decibels

Question 4

What is wavelength measured in?

Answer 4

Meters

Question 5

What is wavelength?

Answer 5

Horizontal distance between peak or peak or base to base

Question 6

Where is amplitude measured from and to?

Answer 6

From the equilibrium line to the peak

Question 7

What is the equilibrium line?

Answer 7

The point where all particles would settle if they had no energy

Question 8

What does frequency effect in sound waves?

Answer 8

Pitch

Question 9

What is the frequency of a wave?

Answer 9

Number of waves passing a stationary point each second

Question 10

What is the time period of a wave?

Answer 10

How long one wave takes to pass a stationary point

Question 11

What is time period measured in?

Answer 11

Seconds

Question 12

What does a wave Do?

Answer 12

A wave transfers energy and information without transferring matter

Question 13

What is the equation for frequency?

Answer 13

1/time period

Question 14

What is the equation for time period?

Answer 14

1/frequency

Question 15

What are the two main types of Wave?

Answer 15

Transverse waves

Longitudinal waves

Question 16

Describe a transverse wave?

Answer 16

Particles in the wave move up and down, at 90* to the direction the wave is travelling.

Question 17

Describe a longitudinal wave?

Answer 17

Particles in the medium through which the wave is travelling move back and forth in the same direction as the wave is travelling

Question 18

What is the equation for speed?

Answer 18

Speed = distance / time

Question 19

What is speed the same as?

Answer 19

Velocity

Question 20

What is the equation for velocity?

Answer 20

Velocity = distance / time

Question 21

What is Hertz another way of saying?

Answer 21

Per Second

Question 22

What is the equation for wave speed?

Answer 22

Wave speed = frequency x wavelength

Question 23

What is speed measured in?

Answer 23

Meters / Second

Question 24

What is wave speed measured in?

Answer 24

Meters / Second

Question 25

How would you measure time taken?

Answer 25

Stopwatch

Question 26

How would you measure frequency?

Answer 26

Frequency meter

Question 27

How would you measure wavelength?

Answer 27

Ruler

Question 28

How would you measure amplitude?

Answer 28

Ruler

Question 29

What will light do when travelling through different mediums?

Answer 29

Either slow down or speed up

Question 30

Where is the normal to an object? {refraction

Answer 30

At 90* to the surface of an object

Question 31

When light is travelling through a dense object, what will it do?

Answer 31

Slow down

Question 32

When light is travelling through a not very dense object, what will it do?

Answer 32

Speed up

Question 33

What does a wave do when it is refracted?

Answer 33

It changes direction

Question 34

When does refraction happen?

Answer 34

When the wave changes from one medium to another

Question 35

What is a medium?

Answer 35

What the save is travelling through

Question 36

Can a wave travel through a vacuum?

Answer 36

Yep

Question 37

Where will a ray of light go in relation to the normal?

Answer 37

The ray of light will go towards the normal

Question 38

What are radio waves made by?

Answer 38

They are made by oscillation in electrical circuits, in the form of alternating currents

Question 39

What does an alternating current do?

Answer 39

Goes back and forth, changing direction

Question 40

What four things can be done to electromagnetic waves?

Answer 40

They can be transmitted, absorbed, reflected and detected

Question 41

What do electromagnetic waves do as they travel through from one medium to another?

Answer 41

They refract

Question 42

What is the speed of light?

Answer 42

3x10^8 m/s