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Introduction to Sound Waves
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Introduction to Sound Waves
🔊 Part 1: Understanding Sound Waves
1. What are sound waves?
Light energy travelling through space
Vibrations travelling through a medium like air
Heat energy moving through objects
Electric current flowing through wires
2. Which of these can sound waves travel through? (Check all that apply)
Air
Water
Empty space (vacuum)
Solid objects like wood
3. When you pluck a guitar string, what happens to create sound?
The string gets hot
The string vibrates back and forth
The string changes colour
The string becomes magnetic
4. Fill in the blanks:
Sound is created when an object _____________ and these vibrations travel through a _____________ such as air to reach our ears.
📊 Part 2: Wave Properties
5. Match the wave property to its definition by drawing lines:
Frequency
Amplitude
Wavelength
How high or low a sound is (pitch)
How loud or quiet a sound is
Distance between two identical points on a wave
6. A high-pitched sound (like a whistle) has:
Low frequency
High frequency
No frequency
Changing frequency
7. If you want to make a sound louder, you need to increase the:
Frequency
Wavelength
Amplitude
Speed
✏️ Part 3: Applying Your Knowledge
8. Explain in your own words how we hear sounds. Include the words: vibration, air, and ears.
9. Give two examples of objects that vibrate to make sound:
Example 1: _________________________
Example 2: _________________________
10. Draw a simple diagram showing how sound travels from a vibrating drum to your ear. Label: drum, sound waves, air, ear
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