End Of Year Assesment Prep 2024

Question 1

What orientation are the vibrations in a longitudinal wave in relation to the direction of energy transfer?

Answer 1

Parallel

Question 2

What orientation are the vibrations in a transverse wave in relation to the direction of energy transfer?

Answer 2

Perpendicular

Question 3

What is the top of a transverse wave called

Answer 3

Peak

Question 4

What is the bottom of a transverse wave called

Answer 4

Trough

Question 5

Give two examples of transverse waves

Answer 5

Water waves and EM waves

Question 6

What is the name of the area of high density in a longitudinal wave?

Answer 6

Area of compression

Question 7

What is the name of the area of low density in a longitudinal wave?

Answer 7

Area of rarefaction

Question 8

What happens to matter when a wave travels through a medium and why?

Answer 8

It stays in the same place as energy is transferred

Question 9

What is the amplitude of a wave?

Answer 9

The distance from the rest position to the peak or trough of the wave

Question 10

What is the wavelength and what is it measured in?

Answer 10

The distance between a fixed point on one wave to the same point on the next wave. Measured in metres

Question 11

What is the frequency and what is it measured in?

Answer 11

The number of waves that pass a given point every second measured in Hertz (Hz)

Question 12

What is the period of a wave and what is it measured in?

Answer 12

The time taken for a full wave to pass given point measured in seconds

Question 13

What is the formula to work out the period.

Answer 13

Period = 1/frequency or T=1/f

Question 14

What is wave speed and what is it measured in?

Answer 14

How quickly energy is transferred through a medium or how quickly the wave travels measured in metres per second (m/s)

Question 15

What is formula to work out wave speed?

Answer 15

Wave speed = frequency x wavelength
Or
v=f x lambda

Question 16

What formula would you use to work out the speed of a sound wave travelling through the air?

Answer 16

Speed = distance/time

Question 17

Order the waves:
Radio waves , infrared , X-rays , visible light , microwaves , ultraviolet and gamma rays
With increasing frequencies

Answer 17

Radio waves , microwaves , infrared , visible light , ultraviolet , X-rays , gamma rays

Question 18

What happens when a wave enters a medium with a different density and what is this called?

Answer 18

It changes direction and it is called refraction

Question 19

Is the angle of refraction smaller or larger than the angle of incidence?

Answer 19

Smaller

Question 20

If the angle of incidence is 60 degrees, what is the angle of emergence?

Answer 20

60 degrees

Question 21

What happens if a wave enters a new medium at 90 degrees and why?

Answer 21

It will travel in a straight line all the way through as it cannot bend any closer towards the normal

Question 22

Why does refraction happen?

Answer 22

Because of a change in density causing the wave to move slower or faster

Question 23

Extra information on specific waves click image below
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V

Answer 23

n/a

Question 24

What is electromagnetic radiation measured in?

Answer 24

Sieverts or millisieverts (Sv or mSv)

Question 25

What type of surface emits more infrared radiation in a Leslie cube investigation?

Answer 25

A dark matt surface

Question 26

What is the type of wave that needs a medium to travel through

Answer 26

A mechanical wave

Question 27

Give examples of mechanical waves

Answer 27

Sound waves, water waves, waves on springs, ropes and seismic waves made by earthquakes

Question 28

What happens to the particles when a waves travels through an object

Answer 28

They oscillate and pass on energy

Question 29

What type of wave is a ripple or a wave in a rope?

Answer 29

Transverse

Question 30

What type of wave is a sound wave

Answer 30

Longitudinal wave

Question 31

What stays the same when a wave enters a new medium and what changes

Answer 31

The frequency stays the same but the wave speed and wave length may change

Question 32

What is absorption?

Answer 32

When the energy of a wave is transferred into the energy stores of the substance they travel into

Question 33

What is reflection

Answer 33

When a wave bounces off a surface

Question 34

What is refraction

Answer 34

When a wave changes speed and direction as it crosses a boundary

Question 35

What is transmission

Answer 35

When waves carry on moving once they’ve crossed the boundary, but may be refracted

Question 36

What is a transverse wave

Answer 36

A wave that oscillates at 90 degrees (perpendicular) to the direction of energy transfer

Question 37

What is a longitudinal wave?

Answer 37

A wave that oscillates parallel to the direction of energy transfer

Question 38

Give an example of a transverse wave

Answer 38

Electromagnetic wave

Question 39

Give an example of longitudinal waves

Answer 39

A sound wave

Question 40

What is an area of compression

Answer 40

The area of high concentration of particles in a longitudinal wave.

Question 41

What is rarefaction

Answer 41

The area of low concentration of particles in a longitudinal wave

Question 42

What is the amplitude of a wave?

Answer 42

The distance from the undisturbed position of a wave to the peak or trough

Question 43

What is the wavelength of a wave?

Answer 43

The distance between two equally distanced fixed points on two neighbouring waves

Question 44

What is the frequency of a wave

Answer 44

The amount of times waves pass a fixed point in a second

Question 45

What unit is frequency measured in

Answer 45

Hertz (Hz)

Question 46

What property of a wave always stays the same when it travels from one medium to another

Answer 46

The frequency

Question 47

What rule do waves follow when the reflect off a surface

Answer 47

Angle of incidence = angle of reflection

Question 48

What happens when waves are transmitted at a boundary between two substances

Answer 48

They change speed

Question 49

What happens when waves are absorbed by a substance

Answer 49

The energy of the wave is transferred to the energy stores of the substance