Sound words bingo

Exercise and reference answers

Clues and terms

1. Clue

   Disturbance of matter carried outward from its source

   Item

   Sound

2. Clue

   The higher pressure region of a travelling sound wave

   Item

   Compression

3. Clue

   The lower pressure region of a travelling sound wave

   Item

   Rarefaction

4. Clue

   The quantity used to describe how loud a sound is

   Item

   Intensity

5. Clue

   Pitch change heard when source and listener move apart

   Item

   Doppler effect

6. Clue

   Energy draining away so the amplitude falls to zero

   Item

   Damping

7. Clue

   Rate a system swings at with no driving and no damping

   Item

   Natural freq

8. Clue

   Driving a system at exactly its own natural frequency

   Item

   Resonance

9. Clue

   Resistance to being squashed, which speeds sound up

   Item

   Rigidity

Instructions

Read each call, tap its term on the board. Three in a line is bingo.

Explanation