# True or False? 20 questions.

## Presentation on theme: "True or False? 20 questions."— Presentation transcript:

True or False? 20 questions

Sound is a transverse wave
Question 1 Sound is a transverse wave

Question 2 Waves are vibrations

Amplitude is the maximum distance from the normal of a wave
Question 3 Amplitude is the maximum distance from the normal of a wave

Frequency is measured in Lambda (  )
Question 4 Frequency is measured in Lambda (  )

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

You cannot reflect all waves
Question 6 You cannot reflect all waves

Question 7 All waves are visible

Diffraction is where waves change direction due to a change in speed
Question 8 Diffraction is where waves change direction due to a change in speed

Question 9 A Tsunami is made of lots of little waves creating one big wave as in interference of waves

In sound the higher the frequency the higher the note
Question 10 In sound the higher the frequency the higher the note

A wave will travel faster in a more dense material
Question 11 A wave will travel faster in a more dense material

Question 12 Gamma radiation has the highest frequency of the waves in the electromagnetic spectrum

All waves of the electromagnetic spectrum can pass through the body
Question 13 All waves of the electromagnetic spectrum can pass through the body

Question 14 In stars a red giant is hotter than a blue dwarf and has a higher frequency

Waves can go around corners
Question 15 Waves can go around corners

Digital signals have a range of frequencies
Question 16 Digital signals have a range of frequencies

Optical fibres use dispersion to transfer from one end to the other
Question 17 Optical fibres use dispersion to transfer from one end to the other

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.

Question 19 A “ noisy” wave is a bad thing. Noise is interference but can be corrected.

Write down as many uses of each type of wave as you can
Question 20 Write down as many uses of each type of wave as you can