Question 50 of 70 in Light and Sound

Sound Waves

2 marks · Easy

The speed of sound in air is 340 m/s. Calculate how long it takes a sound wave to travel 170 m. Give your answer in seconds.

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0.5 s (±0.02)

Common mistakes: 2; 340 / 170; time = speed × distance

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Marking points

M1 · 1 mark · Uses formula time = distance / speed (t = s/v).

A1 · 1 mark · Correct calculation: 170 / 340 = 0.5 s.

Worked solution

t = 170 / 340 = 0.5 s

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