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Card 36
Front
Choose the appropriate word: the pitch of a note depends on the _frequency/amplitude_ of the sound waves. [1 mark]
Back
Card 37
Front
Choose the appropriate word: the higher the frequency of the waves, the _higher/lower_ the pitch of the sound. [1 mark]
Back
Card 38
Front
Choose the appropriate word: the volume of a sound depends on the _frequency/amplitude_ of the sound waves. [1 mark]
Back
Card 39
Front
Choose the appropriate words: the greater the amplitude, the _less/more_ energy the wave carries and the _quieter/louder_ the sound. [2 marks]
Back
Card 40
Front
How do people hear sound (in terms of waves)? [3 marks]
Back
Card 41
Front
What is the range of frequencies that the human ear can hear? [2 marks]
Back
Card 42
Front
Choose the appropriate word: the ability to hear _higher/medium/lower_ frequencies declines with age. [1 mark]
Back
Card 43
Front
What are ultrasound waves? [1 mark]
Back
Card 44
Front
How can you scan using ultrasound? (part 1) [5 marks]
Back
Card 45
Front
How can you scan using ultrasound? (part 2) [5 marks]
Back
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