🌊 Part 1: Wave Vocabulary

1. Match each wave term to its correct definition by drawing lines:

Wavelength

Frequency

Crest

Trough

The highest point of a wave

How often waves happen per second

Distance between two wave crests

The lowest point of a wave

2. Which statement about waves is correct?

Waves with high frequency have long wavelengths

Waves with high frequency have short wavelengths

Frequency and wavelength are the same thing

3. High frequency sound waves create:

High pitch sounds

Low pitch sounds

No sound at all

🔬 Part 2: Slinky Investigation Results

4. Record your observations from the slinky experiment:

Slow pulses (low frequency):

Time for 5 waves: _______ seconds

Wavelength appeared: (circle one) long / short

Fast pulses (high frequency):

Time for 5 waves: _______ seconds

Wavelength appeared: (circle one) long / short

5. Draw and label your wave observations:

Draw slow pulses here (label crests and troughs):

Draw fast pulses here (label crests and troughs):

6. What pattern did you notice about wavelength and frequency?

🎯 Part 3: Understanding and Extension

7. Explain in your own words what happens to the pitch of a sound when the frequency increases:

8. If you counted 10 waves in 2 seconds, what is the frequency?

Formula: Frequency = Number of waves ÷ Time

Calculation: ________________

Answer: _______ waves per second

9. Extension Challenge: Why do you think emergency vehicle sirens change pitch as they drive past you?

10. Success Check: Tick the boxes for what you can now do:

I can define wavelength and frequency

I can explain how wavelength and frequency are related

I can describe how frequency affects pitch

I can record and interpret wave observations

Wavelength and Frequency Investigation

Wavelength and Frequency Investigation

🌊 Part 1: Wave Vocabulary

🔬 Part 2: Slinky Investigation Results

🎯 Part 3: Understanding and Extension

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