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What is a single disturbance that moves through a medium called?
AA wave
BA crest
CA pulse
DA node
Answer & Solution
Correct answer: C. A pulse
1. Flicking a stretched rope once sends one bump travelling along it.
2. A single disturbance that moves through a medium is called a pulse.
3. A wave is different because it is a whole train of pulses following one another.
_Source: Siyavula Physical Sciences Grade 10 (Everything Science, CC BY 4.0), Chapter 7: Transverse pulses_