1
Q
how is a standing wave produced?
A
it is produced when two waves of same frequency/amplitude travel in opposite directions and superpose.
2
Q
what are nodes?
A
they are points of zero amplitude
3
Q
what are antinodes?
A
they are points of maximum amplitude
4
Q
what are some examples of standing waves?
A
Musical instruments (guitar strings, organ pipes) and Microwave oven cavity → standing microwaves heat food unevenly
5
Q
what is one advantage of a standing wave?
A
Standing waves are useful for tuning musical instruments
6
Q
what is one disadvantage of a standing wave?
A
in engineering, standing waves can cause dangerous resonance e.g. bridge collapse if vibration matches natural frequency.
btec applied science physics unit 1
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