Misconception 1: "Waves transfer matter"
Waves transfer ENERGY, not matter. In a water wave, the water molecules move in circles and return to their original positions โ no net movement of water occurs in the direction the wave travels. The Mexican wave analogy makes this clear: people move up and down, but nobody runs around the stadium.
Misconception 2: "Frequency changes when a wave enters a new medium"
Frequency is fixed by the source. When light enters glass, its speed and wavelength both decrease, but frequency stays the same. Think of it like cars entering a traffic jam โ cars slow down and bunch up (shorter wavelength) but the rate at which cars leave the motorway junction (frequency) stays the same.
Misconception 3: "Amplitude and frequency are related"
They are completely independent. A loud, low-frequency sound has large amplitude but low frequency. A quiet, high-pitched sound has small amplitude and high frequency. Amplitude controls energy/intensity; frequency controls pitch/colour.
This common misconceptions covers Common Misconceptions within Wave Properties for GCSE Physics. Revise Wave Properties in Waves for GCSE Physics with 21 exam-style questions and 15 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 8 of 13 in this topic. Use this common misconceptions to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Wave Properties
What do waves transfer from one place to another?
Explain the difference between a transverse wave and a longitudinal wave.