True or False?

20 questions

Question 1

Sound is a transverse wave

False its longitudinal!

Question 2

Waves are vibrations

True!

Question 3

Amplitude is the maximum distance from the normal of a wave

True!

Question 4

Frequency is measured in Lambda ( )

False! It is measured in Hertz!

Question 5

Radio 1 FM (88-91MHz) has a shorter wavelength that BBC 5 Live MW

(693-909 kHz)

False!

Question 6

You cannot reflect all waves

False! It is a property of waves!

Question 7

All waves are visible

False! Think of the Electromagnetic waves!

Question 8

Diffraction is where waves change direction due to a change in speed

False! This would be refraction!

Question 9

A Tsunami is made of lots of little waves creating one big wave as in interference

of waves

False!

Question 10

In sound the higher the frequency the higher the note

True!

Question 11

A wave will travel faster in a more dense material

False! It will travel slower!

Question 12

Gamma radiation has the highest frequency of the waves in the

electromagnetic spectrum

True!

Question 13

All waves of the electromagnetic spectrum can pass through the body

False! What about light?

Question 14

In stars a red giant is hotter than a blue dwarf and has a higher frequency

False! Blue hot is hotter than orange hot and gives off a higher frequency!

Question 15

Waves can go around corners

False! They travel in straight lines! (Unless they diffract!)

Question 16

Digital signals have a range of frequencies

False! Digital signals don’t have a frequency in the sense we use it here.

Question 17

Optical fibres use dispersion to transfer from one end to the other

False! They use Total Internal Reflection!

Question 18

When sunlight passed through a raindrop it splits into a spectrum of colours. This is because sunlight is made up of different

frequencies and wavelengths.

True!

Question 19

A “ noisy” wave is a bad thing. Noise is interference but can be corrected.

True!

Question 20

Write down as many uses of each type of wave as you can