Wave Properties
Sound Waves
Analog vs Digital
Electromagnetic Waves
Random
100
A disturbance that repeats regularly in space and time.
wave
100
True or False. Sound waves are mechanical, longitudinal waves.
True
100
Analog or Digital: Cup Phone
analog
100
What type of wave is light (Electromagnetic waves)? Longitudinal or transverse?
Transverse
100
What type of wave requires a medium to be transmitted?
Mechanical waves like sound
200
What do waves transmit (or carry)?
energy
200
Sound travels fastest through this medium
Solid
200
A continuous transmission of information carried by waves. Sound is an example of this.
Analog
200
List all the colors of light in order from longest wavelength (weakest energy) to shortest wavelength (highest energy).
Red, orange, yellow, green, blue, violet /purple
200
Give an example of other animals using sound waves
Echolocation in bats, whales, dolphins
300
Particles in this wave move perpendicular to the direction of the wave.
Transverse wave
300
A loud sound corresponds to what kind of amplitude?
High amplitude
300
Analog or digital?
Top- analog
Bottom - digital
300
The longest wavelength of electromagnetic waves with the lowest energy
Radio waves
300
What type of Electromagnetic waves do cell phones use? (name 2 types)
radio & microwaves
400
Describe refraction and how that affects the wave's speed or wavelength
When a wave goes from one medium to another and changes speed & wavelength
400
Which of these has the highest frequency? What type of pitch will that sound make?
Pink one- will have the highest pitch sound,
because high frequency = high pitch
400
For the what is the sampling rate for the BEST sound quality? worst sound quality?
High sampling rate - Best
Low sampling rate - Worst
400
The highest frequency and highest energy type of electromagnetic waves
Gamma rays
400
Why can't sound travel in space?
Space has so few or no particles that sound cannot travel. It requires a medium to pass along the vibrations.
500
Name all parts of this wave:
F= crest
G = amplitude
H = trough
J = wavelength
500
A high pitch, loud sound has what type of amplitude and what type of frequency?
High amplitude & high frequency
500
List an advantage that digital signals have over analog signals.
Less interference from noise, doesn't have to worry about machinery (like record players) breaking down, sound quality remains high and sounds exactly like the original recording.
500
Night vision goggles help us see at night by detecting which type of EM waves?
Infrared waves
500
Name the 3 types of Electromagnetic waves that can cause harm to humans if there's too high of an exposure.
Ultraviolet, X-rays, Gamma rays