Year 8 Loudness and Amplitude

Poll

If shouting was a water wave, which of these would it be?

• Wave A (gentle wave)

• Wave B (tidal wave)

Poll

Which wave is louder, D (top wave) or E (bottom wave)?

• D

• E

Multiple Choice

Which wave is louder, D (top wave) or E (bottom wave)?

• D

• E

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​Also label the crest and trough.

​Crest hint: where is the 'crest' of a water wave?

​Trough hint: what does a farmer use a trough for?

​Research Activity 1 Solutions

​Self-assess in different-coloured pen:

1.Draw a diagram of a wave. Label its wavelength and amplitude. Label also its crest and trough. (see image)

2.Define amplitude.

Amplitude is the maximum height of the wave from its resting position.

3.Define wavelength.

Wavelength is the distance between the crests (tops) of two waves next to each other.

4.Define frequency.

frequency is the number of waves per second.

Multiple Choice

What is A on the diagram? 

• Wavelength 

• Frequency

• Amplitude

• Crest

• Trough

Multiple Choice

What is B on the diagram? 

• Wavelength 

• Frequency

• Amplitude

• Crest

• Trough

Multiple Choice

What is C on the diagram? 

• Wavelength 

• Frequency

• Amplitude

• Crest

• Trough

Multiple Choice

What is D on the diagram? 

• Wavelength 

• Frequency

• Amplitude

• Crest

• Trough

Poll

What is the difference between waves A, B and C?

• A, B and C have different wavelengths

• A, B and C have different amplitudes

• A, B and C have different frequencies

Multiple Choice

What is the difference between waves A, B and C?

• A, B and C have different wavelengths

• A, B and C have different amplitudes

• A, B and C have different frequencies

Poll

Which wave is the same type of wave as a water wave?

• Top wave

• Bottom wave

Multiple Choice

Which wave is the same type of wave as a water wave?

• Top wave

• Bottom wave

Poll

Which wave is the same type of wave as a light wave?

• Top wave

• Bottom wave

Multiple Choice

Which wave is the same type of wave as a light wave?

• Top wave

• Bottom wave

Poll

Which wave is the same type of wave as a sound wave?

• Top wave

• Bottom wave

Multiple Choice

Which wave is the same type of wave as a sound wave?

• Top wave

• Bottom wave

Poll

What type of wave is the top wave?

• Transverse wave: the spring vibrates at right angles to the direction of energy transfer

• Longitudinal wave: the spring vibrates in the same direction as the direction of energy transfer

Multiple Choice

What type of wave is the top wave?

• Transverse wave: the spring vibrates at right angles to the direction of energy transfer

• Longitudinal wave: the spring vibrates in the same direction as the direction of energy transfer

Poll

What type of wave is the bottom wave?

• Transverse wave: the spring vibrates at right angles to the direction of energy transfer

• Longitudinal wave: the spring vibrates in the same direction as the direction of energy transfer

Multiple Choice

What type of wave is the bottom wave?

• Transverse wave: the spring vibrates at right angles to the direction of energy transfer

• Longitudinal wave: the spring vibrates in the same direction as the direction of energy transfer

Multiple Choice

True or false: A wave with a larger amplitude is louder.

• True

• False

Multiple Choice

True or false: Frequency is the number of waves per second.

• True

• False

Multiple Choice

True or false: Water waves are longitudinal.

• True

• False

Multiple Choice

True or false: Sound waves are longitudinal.

• True

• False