Name: _______________________________________________ Date: ______________ Hr: ___
Unit 7 Homework Packet: Waves, Sound, and Light
Part 1: Wave Basics
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Part 2: Wave Measurements
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Part 3: Profile of a Wave
Sound waves, water waves, radio waves, microwaves, electromagnetic waves, light waves, X-rays,
gamma rays, and more! These are some (but not all) of the different kinds of waves traveling in the
world. A wave is a rhythmic disturbance that carries energy from one place to another. The many
different kinds of waves share many characteristics. Some of them are shown on the wave below
that show kids shaking a rope up and down. Answer the questions that follow using the diagram.
1. What do you call the distance represented by arrow Z? ____________________
2. What letter labels the trough of the wave? ___________________
3. What letter labels the crest of the wave? ___________________
4. The number of waves that pass the poster each second is called the ________________ of the
wave.
5. If the knot (W) travels 2 meters in 1 second, we say it has a ______________ of 2 m/s.
6. If the wavelength were shortened, would the frequency be higher or lower? _____________
7. The greatest distance the knot (W) travels from it’s resting position is called the wave’s
________________________.
8. What kind of waves are these in the rope? _____________________
9. A wave in which vibrations from the first disturbance set off a series of collisions followed by calm,
empty spaces is called a _____________________ wave.
10. If the kids were wobbling the rope up and down through pudding instead of air, the
______________ would change.
11. The rapid, back and forth movements of any object are called ________________.
12. The frequency of a wave is measured with the unit ______________, which is _______ wave per
_____________.
13. If the waves in the rope have a frequency of 2 hertz, how many waves pass a point per second?
__________
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Part 4: Speed of Waves
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Part 5: Guided Reading, Light
Use your book to find answers to the questions below (Chapters 14 – 16).
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Part 6: Wavestown
1. Fill in the names of the appropriate EM waves on the EM spectrum
2. Color the visible light spectrum appropriately based on wavelengths of each color
3. Find and label AT LEAST one example of each type of EM wave in the picture. For example, the
rainbow is an example of visible light.
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Part 7: Light and EM Waves
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