Lesson 1
1. What is a wave?
A wave can be described as a disturbance that travels through a medium from one location to another location.
2. What are the different categories of waves?
Transverse - A ripple on a pond
Longitudinal - A slinky
Lesson 2
3. Define wavelength of a wave and then get a picture from the web of what a wavelength is.
Wavelength - the length of one complete cycle of a wave
1. What is a wave?
A wave can be described as a disturbance that travels through a medium from one location to another location.
2. What are the different categories of waves?
Transverse - A ripple on a pond
Longitudinal - A slinky
Lesson 2
3. Define wavelength of a wave and then get a picture from the web of what a wavelength is.
Wavelength - the length of one complete cycle of a wave
4. Define frequency of a wave.
Frequency - how often the particles of the medium vibrate when a wave passes through the medium
5. What is the relationship between wavelength and frequency? Screencapture the interactive to show the relationship between wavelength and frequency.
The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
Lesson 3
6. What are constructive and destructive waves?
Constructive - the crest of one wave overlaps the crest of another and their individual effects add together
Destructive - the crest of one wave overlaps the trough of another and their individual effects are reduced
7. What is Doppler Effect? Provide a real life example.
The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward shift in frequency for observers from whom the source is receding.
Real Life Example: When the siren on an ambulance is approaching, it gets louder until it pass by your fixed point. After it passes you, the siren changes pitch.
Lesson 4
Electromagnetic waves - Electromagnetic waves are waves that contain an electric field and a magnetic field and carry energy. They travel at the speed of light.
Frequency - how often the particles of the medium vibrate when a wave passes through the medium
5. What is the relationship between wavelength and frequency? Screencapture the interactive to show the relationship between wavelength and frequency.
The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
Lesson 3
6. What are constructive and destructive waves?
Constructive - the crest of one wave overlaps the crest of another and their individual effects add together
Destructive - the crest of one wave overlaps the trough of another and their individual effects are reduced
7. What is Doppler Effect? Provide a real life example.
The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward shift in frequency for observers from whom the source is receding.
Real Life Example: When the siren on an ambulance is approaching, it gets louder until it pass by your fixed point. After it passes you, the siren changes pitch.
Lesson 4
Electromagnetic waves - Electromagnetic waves are waves that contain an electric field and a magnetic field and carry energy. They travel at the speed of light.