Question 1

How do the air molecules in a sound wave move?

Accepted Answer

To and fro

Answer

Backwards

Answer

up and down

Answer

Diagonally

Question 2

The areas of compression and rarefaction in a sound wave cause a force on solids or liquids.  That is why we can call sound......

Accepted Answer

A pressure wave

Answer

A loud wave

Answer

A transverse wave

Answer

An electromagnetic wave

Question 3

Sound waves are longitudinal waves.  This means that the particles...

Accepted Answer

Oscillate (vibrate) in the same direction as the movement of the wave

Answer

React together in a chemical reaction

Answer

Oscillate (vibrate) at 90 degrees to the movement of the wave

Answer

Oscillate (vibrate) diagonally to the movement of the wave

Question 4

How does a microphone work?

Accepted Answer

It converts changes in air pressure to a changing potential difference

Answer

It converts a changing potential difference to changes in air pressure

Answer

It converts changes in volume to an oscilloscope

Answer

It converts changes in air pressure to a force

Question 5

How does a loudpeaker work?

Accepted Answer

It converts a changing potential diffrence to changes in air pressure

Answer

It converts changes in air pressure to a changing potential difference

Answer

It converts changes in movement to a changing potential difference

Answer

It converts a changing kinetic energy into changes in air pressure

Question 6

This baby can hear between 20Hz and 20 000Hz, but it can't hear ultrasound noises.  Why not?

Accepted Answer

Ultrasound is above 20 000Hz

Answer

Ultrasound is below 20Hz

Answer

Ultrasound is above 2000Hz

Answer

Ultrasound is too quiet

Question 7

Ultrasound interacts with solids or liquids, making the particles vibrate.  Apart from scanning, what else can it be used for?

Accepted Answer

Cleaning equipment

Answer

Sun tan beds

Answer

Remote controls

Answer

Looking for broken bones

Question 8

Fill in the missing parts of the electromagnetic spectrum.  Radio waves- microwaves-? - visible light- ultraviolet- ? - ?

Accepted Answer

Infrared, X-rays, Gamma rays

Answer

Sound, Infrared, Gamma rays

Answer

Gamma rays, X-rays, Infrared

Answer

Infrared, sound, X-rays

Question 9

Gamma waves has the highest energy.  Why?

Accepted Answer

Highest frequency and shortest wavelength

Answer

Lowest frequency and longest wavelength

Answer

Highest frequency and highest wavelength

Answer

Lowest frequency and lowest wavelength

Question 10

Waves with a high energy can knock electrons out of atoms in a living cell  This can go on to produce cancer.  What do we call this?

Accepted Answer

Ionisation

Answer

Longitudinal

Answer

Electromagnetic

Answer

Transverse

Question 11

Electromagnetic waves with a low frequency and energy have a heating effect.  Which are these?

Accepted Answer

Radio waves, microwaves, infrared, visible

Answer

Infrared, visible, ultraviolet

Answer

Radio waves, visible, X-rays

Answer

Ultraviolet, X-rays, gamma

Question 12

The slinky is modelling transvese waves.  How can we tell?

Accepted Answer

The oscillation (vibration) is 90 degrees to the movement of the wave

Answer

The oscillation (vibration) is diagonal to the movement of the wave

Answer

The oscillation (vibration) is parallel to the movement of the wave

Answer

The oscillation (vibration) is independent to the movement of the wave

Question 13

This ripple tank is showing the reflection of a wave.  How can we tell?

Accepted Answer

The angle of incidence (in) is equal to the angle of reflection (out)

Answer

The angle of incidence (in) is smaller than the angle of reflection (out)

Answer

The angle of incidence (in) is bigger than the angle of reflection (out)

Answer

The angle of incidence (in) has no relationship to the angle of reflection (out)

Question 14

This diagram shows light changing direction and moving through a glass block.  What do we call this?

Accepted Answer

Refraction

Answer

Transmission

Answer

Reflection

Answer

Dispersion

Question 15

Which term do we give to waves when thay add up or cancel out?

Accepted Answer

Superpose

Answer

Dispersion

Answer

Refraction

Answer

Reflection

Question 16

s and p waves have helped reveal the structure of the Earth.  What type of wave is an s wave?

Accepted Answer

Transverse

Answer

Longitudinal

Answer

Pressure

Answer

Ionising

Question 17

Which of these waves is loudest (most amplitude)?

Accepted Answer

2 & 3

Answer

1 & 2

Answer

1

Answer

3

Question 18

Which of these waves has the most energy (highest frequency)?

Accepted Answer

3

Answer

1 & 2

Answer

1

Answer

2

Question 19

Which of these wves has the longest wavelength?

Accepted Answer

1

Answer

2 & 3

Answer

3

Answer

2

Question 20

What is the movement of water waves beeing used for here?

Accepted Answer

To generate electricity

Answer

For fresh water supplies

Answer

Surfing

Answer

To generate movement

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