Parts of a Wave interactive worksheet - Free Printable

The image shows a transverse wave with labeled parts, and the task is to match the blue labels (which are currently blank) to the correct wave properties listed on the right: Amplitude, Crest, Frequency, Wavelength, and Trough.

Let’s analyze the wave diagram and correctly identify each part:

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Step-by-step Analysis:

1. Crest:
- The crest is the highest point of the wave.
- In the diagram, the top of each upward peak is labeled by a blue box pointing to the peak.
- So, the top blue label points to the crest.

2. Trough:
- The trough is the lowest point of the wave.
- The bottom blue label points to the lowest point of the wave.
- So, the bottom blue label corresponds to the trough.

3. Amplitude:
- The amplitude is the maximum displacement from the equilibrium (rest) position.
- It is measured from the centerline (equilibrium line) to either the crest or trough.
- The right-side vertical blue label (with an arrow pointing from the centerline to the crest) represents the amplitude.

4. Wavelength:
- The wavelength is the distance between two consecutive crests or two consecutive troughs.
- The top horizontal blue label spans from one crest to the next crest — this is the wavelength.

5. Frequency:
- Frequency refers to how many waves pass a point per unit time.
- It is not directly shown as a length or position in the diagram; it's a property related to time, not space.
- However, since frequency is listed but not directly measurable from the spatial diagram, it might be a distractor here.
- But in this case, there is no label pointing to a time-based measurement. So likely, "Frequency" is not meant to be matched to any of the blue boxes because it's not visually represented in the diagram.

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Final Matching:

| Blue Label Position | Correct Term |
|---------------------|--------------------|
| Top (pointing to peak) | Crest |
| Bottom (pointing to valley) | Trough |
| Right side (vertical from center to crest) | Amplitude |
| Top horizontal (between two crests) | Wavelength |
| Left side (horizontal across entire wave) | Not used (this may be misleading or extra) |

Wait — actually, let’s double-check the positions:

Looking at the image:
- There are four blue labels:
1. Top left: points to the first crest
2. Top right: spans from one crest to the next → wavelength
3. Bottom middle: points to the trough
4. Right side: vertical line from centerline to crest → amplitude

And the left horizontal bar appears to span the entire wave, but it doesn't connect to a specific feature. That may be a mistake or irrelevant.

But note: there are five terms listed, but only four blue labels.

So we must assign four of them.

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Correct Assignment:

- Top left label → points to Crest
- Top right label → spans between two crests → Wavelength
- Bottom label → points to Trough
- Right vertical label → measures height from center to crest → Amplitude

That leaves Frequency unassigned — which makes sense because frequency cannot be seen in a static wave diagram without time information.

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✔ Final Answer:

Match the blue labels as follows:

- Top left (to peak) → Crest
- Top right (between peaks) → Wavelength
- Bottom (to valley) → Trough
- Right vertical (height) → Amplitude

> Frequency is not labeled because it cannot be determined from a spatial wave diagram alone.

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Summary:

| Blue Label Location | Term Assigned |
|----------------------|-------------------|
| Top left | Crest |
| Top right | Wavelength |
| Bottom | Trough |
| Right side (vertical)| Amplitude |

✔ Frequency is not assigned — it's a time-related concept and not shown.

This completes the labeling task.