Students learn about how sound reflects off various surfaces and the uses this can be put to.
Students revise the properties of sound waves and think about why satellite dishes and other objects that rely on collecting waves are shaped in a certain way.
Students plan a practical, using their knowledge of reflecting waves to determine the best arrangement of mirrors to make reflected light rays converge. They then apply this to determining the best shape of a sound reflector.
Students use distance-speed-time calculations to work out the effectiveness of aircraft detectors that rely on sound reflection and then compare these to radar.
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