Questions: Wave Properties: Amplitude, Frequency, and Wavelength
3 questions to test your understanding
Score: 0 / 3
Question 1 Multiple Choice
If you shake a rope faster, what happens to the wavelength of the waves you create?
AWavelength increases
BWavelength decreases
CWavelength stays the same
DWavelength becomes zero
For a wave on a rope (where speed is roughly constant), increasing the frequency means each wave cycle takes less distance to complete, so the wavelength decreases.
Question 2 True / False
The amplitude of a wave determines its loudness (for sound) or brightness (for light).
TTrue
FFalse
Answer: True
Amplitude measures the energy carried by a wave. For sound waves, greater amplitude means louder sound. For light waves, greater amplitude means brighter light.
Question 3 Short Answer
What is the difference between frequency and wavelength?
Think about your answer, then reveal below.
Model answer: Frequency is the number of wave cycles per second (measured in hertz), while wavelength is the physical distance between consecutive identical points on the wave (like crest to crest, measured in meters).
Frequency describes how often the wave oscillates in time; wavelength describes how long each oscillation is in space. They are inversely related when wave speed is constant.