Waves 101
Light Manipulation
Medium
Amplitude, Frequency, Volume, Pitch
Sound Waves
100
This type of wave vibrates matter forward and backward in the medium, in the same direction as the wave is moving.
What is a longitudinal wave?
100
when a wave strikes a surface and bounces off is called
What is reflection?
100
sound waves cannot carry energy through this
What is a vacuum?
100
The distance from peak to peak
1
What is wavelength?
100
What type of wave is a sound wave?
longitudinal
200
This type of wave vibrates matter in the opposite direction from how the wave is moving.
What is a transverse wave?
200
This model correctly shows how the light would interact with the t-shirt and shorts.
What is model c?
200
What is a medium? Give an example
material that mechanical wave needs to travel through.
solid, liquid, Gas
200
What wave property indicates that wave B has higher energy than wave A?
amplitude
200
If you were in outerspace, would anybody be able to hear you scream?
No. Require medium to travel through
300
This type of wave does not need matter to transfer energy.
What is an electromagnetic wave?
300
angle of incidence is 40o, what is the angle of reflection
40o
300
In what medium do light waves travel the slowest? the fastest?
slowest = solid
fastest = gas
**light SLOWS down in more dense materials **
300
What happens to frequency and energy when the pitch gets lower?
Frequency becomes lower; energy becomes lower
300
Sound waves travel the fastest in what medium? The slowest in what medium?
fastest- solids
slowest- gases
400
High frequency waves have _______ wavelengths.
What are SHORT wavelengths?
400
This is a real picture of a polar taken at a zoo. Fortunately for the polar bear, its head is actually connected to its body. This wave behavior is responsible for why the head looks separate from the body.
What is Refraction? Light waves are bending as they pass from air to water.
400
Sound waves will travel faster in this kind of matter.
What is a solid?
400
How can you tell if a wave has a high amount of energy?
Look at the frequency.
Closer=more energy
400
Explain why sound waves travel the fastest in solids.
solids: particles very tightly packed therefore sound waves can vibrate off of the particles very quickly.
500
this part of a longitudinal wave will slow down or stop energy from being transferred
What is compression?
500
Label the following wave behaviors.
A - Transmission
B - Reflection
C - Absorption
D - Refraction
500
What type of wave can travel through a vacuum?
EM Wave
(Radio, Light, UV, Infrared, Microwave)
500
When a drum is hit with a stick, it creates a vibration, which makes a sound. The number of vibrations in a second determines this property of sound.
What is frequency?
500
Explain how you would perceive the sound of a firetruck siren as it speeds towards you and speeds away from you using the terms: wavelength, frequency, & pitch.
towards you: short wavelength, high frequency, high pitch
away from you: long wavelength, low frequency, low pitch