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# Waves and Light

## Explore waves through sound, light, and more!

This course was written in collaboration with Danielle Scarano, a graduate of Duke University who served as the founding science department chair at the project-based Summit Tamalpais school.

Everything we hear and see is based on information our bodies take in from waves. In this course you’ll learn what waves are, how they travel, and how they interact. Along the way, you’ll apply your knowledge to earthquakes, noise-canceling headphones, ropes, and musical instruments.

13

150+
1. 1

### Waves

Learn about the wave basics: periods, oscillations, amplitude, wavelength, frequency, velocity, and more!

1. #### Waves

Sound, light, and skipping ropes — they're all waves.

2. #### Wave Anatomy

What's different about water waves and sound waves? What do they have in common?

3. #### Wave Frequency and Velocity

How do we measure the speed of sound?

2. 2

### Wave Behaviors

Uncover what happens when one wave meets another and when waves hit boundaries.

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#### Interference

When waves collide, sometimes it can get destructive.

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#### Boundary Behavior

Can you still hear sound underwater?

3. Included with

#### Standing Waves

Explore how a guitar holds a wave in place to produce a note.

3. 3

### Wave Applications

Explore interesting wave applications including the Doppler effect and noise-canceling headphones!

1. Included with

All it takes is a bit of interference to leave you alone with your music in a loud room.

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#### The Doppler Effect

Can an ambulance catch up to the sound of its own siren?

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#### Seismic Waves

Trace an earthquake back to its source by using wave properties.

4. 4

### Light

Discover what light is and how we measure it. Examine experiments, learn about the electromagnetic spectrum, and more!

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#### What is Light?

Light has a bit of an identity crisis: is it a wave or not?

2. Included with

Learn how electromagnetic waves happily travel through the vacuum of space.

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