Page 115 - Big Ideas Year 9 sciPAD 2025

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SCIPAD - BIG IDEAS - BOOK 1
THE IMPORTANCE OF WAVES
End of Chapter Review Questions
gases - vibrations - solids - vacuum - liquids
1. Complete the following sentences using the word list provided.
“Sound is caused by . These can pass through ,
and but not through a .”
2. Label the following wave.
3. A student is investigating sound waves with an oscilloscope. The graphs she produced are
shown below.
A B
C D
Which graph shows:
(a) the lowest-pitched note(s)? 
(b) the highest-pitched note(s)? 
(c) the loudest note(s)? 
(d) the quietest note(s)? 
Rest position
Direction
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