Let’s go step by step to solve Q.2 — filling in the blanks with the correct wave property terms.
We’ll use the diagram from Q.1 as a reference, since it labels the parts of a wave: crest, trough, wavelength, and amplitude. We also need to recall two more important terms: frequency and period.
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a) ___ is the highest point on a wave.
Looking at the diagram, the top peak of the wave is labeled “crest”. So this blank should be
crest.
✔ Check: Yes, crest = highest point.
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b) ___ is the lowest point on a wave.
The bottom dip of the wave is labeled “trough” in the diagram.
✔ Check: Yes, trough = lowest point.
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c) ___ is the distance between corresponding points of two consecutive waves.
In the diagram, “wavelength” is shown as the horizontal distance from one crest to the next crest (or any matching point). That’s exactly what this definition says.
✔ Check: Wavelength = distance between same points on adjacent waves.
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d) ___ is the maximum displacement from the rest or central position.
The diagram shows “amplitude” as the vertical arrow from the center line up to the crest (or down to trough). That’s the max displacement from rest.
✔ Check: Amplitude = how far the wave moves from its middle/flat position.
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e) ___ is the number of complete waves that pass a given point in one second.
This is not labeled in the diagram, but we know from science class: if you count how many full waves go past you every second, that’s called
frequency. It’s measured in Hertz (Hz).
✔ Check: Frequency = waves per second.
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f) ___ is defined as the time taken to produce one complete wave.
Again, not in the diagram, but if frequency is “how many per second”, then the time for *one* wave is the opposite — that’s called
period. For example, if 2 waves pass per second, each takes 0.5 seconds → period = 0.5 s.
✔ Check: Period = time for one full wave cycle.
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All answers match standard wave definitions and are consistent with the diagram.
Final Answer:
a) crest
b) trough
c) wavelength
d) amplitude
e) frequency
f) period
Parent Tip: Review the logic above to help your child master the concept of wave properties worksheet.
