Wave Vocabulary
Sound Waves
Light Waves
Electromagnetic Spectrum
Lenses and Mirrors
100
Disturbances that cary energy but not matter.
Wave
100
Sound waves need to travel through what?
a medium
100
Term for light waves that travel off a surface and back towards our eyes to see a reversed image.
Reflection
100
This type has the longest wavelength and lowest frequency.
Radio Waves
100
What type of lens is thicker towards the edges and thinner in the center?
Concave lens
200
The distance a wave rises above its normal level. Associated with volume.
Amplitude
200
Explain what a change in frequency does to sound.
It alters the pitch.
Bonus: demonstrate a low and high pitch sound.
200
If the angle of incidence is 45 degrees, what is the angle of reflection?
45 degrees
200
All electromagnetic waves travel at the same speed in a vacuum, this property increases as wavelength decreases.
Frequency
200
Provide an example of an object that uses lenses.
Cameras
Telescopes
Binoculars
Microscopes
300
The least dense part of a compression wave.
Rarefaction
300
In what order do sound waves move slowest to fastest in the following mediums (solid, gas, liquid)?
Gas -> Liquid -> Solid
300
What 3 things could happen when a light wave hits a surface?
Reflection, refraction, diffraction
bonus: explain all three
300
Choose a number:
1 2 3
1. Gain 300 points
2. Give 300 points
3. Lose 300 Points
300
What type of mirror, found on the passenger side of most cars, curves outward and produces a smaller, wider field-of-view reflection.
Convex mirror
400
A type of wave that can only travel through matter.
Mechanical Wave
400
What happens when these to waves interact?
1. A new wave is formed.
2. Amplitude doubles.
3. There is resonance between the two waves.
400
Explain in detail the cause for this illusion.
Refraction - When waves pass through different materials causes it to bend due to the change in speed.
400
Which has a higher frequency: yellow or green?
Green
400
What image would be seen for both of these mirrors?
1. Larger image of self
2. Smaller, inverted image of self
500
Name for a type of sound wave that is over a specific frequency.
Bonus: What is the number for that frequency? (include units)
Ultrasonic or Supersonic
bonus: 20,000 hz
500
Which number piano wire will have the lowest pitch?
4
500
Explain how a light wave can be reflected, transmitted, and absorbed by providing examples of each.
Transmitted - light moves through a window
Reflected - light bounces off a mirror
Absorbed - light is absorbed by a wall
500
Name all the waves of the electromagnetic spectrum in order from least to greatest frequency.
Radio, Microwaves, Infrared, Visible Light, UV, X-Ray, Gamma
500
First team to entirely stand up gets the points!
Ya snooze, ya lose