1) A louder sound has a bigger a) Amplitude b) Frequency c) Wavelength d) Hertz 2) A quieter sound has a smaller a) Amplitude b) Frequency c) Wavelength d) Hertz 3) A higher pitch sound has a higher a) Amplitude b) Frequency c) Wavelength d) Hertz 4) A lower pitch sound has a lower a) Amplitude b) Frequency c) Wavelength d) Hertz 5) The unit for frequency a) Amplitude b) Frequency c) Wavelength d) Hertz 6) The unit for frequency a) Amplitude b) Frequency c) Wavelength d) Hertz 7) The speed of sound in air a) 330 m/s b) 33 000 m/s c) 300 000 000 m/s d) 33 m/s 8) The speed of light a) 330 m/s b) 33 000 m/s c) 300 000 000 m/s d) 33 m/s 9) If you are watching a firework display from 1 km away, which will you sense first? a) The flash of light b) The bang 10) If there is a thunderstorm 1 km away, which will you sense first? a) Lightning b) Thunder

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