Light
Individual particles of light are called...
photons.
Radio waves use both ___ and ___ frequencies.
AM
FM
AM and FM radio uses...
Analog signals.
The top of the wave.
Crest.
A sound with high amplitude will be...
loud.
When light passes through an object, unchanged on the other side.
Transmission
Sunscreen protects us from...
ultra-violet rays.
Digital signals use a language of 1s and 0s called...
Binary Code
The bottom dip of a wave.
Trough.
A sound with low frequency will have what sort of pitch?
Define absorption.
Photons, or particles of light, are stored as internal energy.
The wavelengths from least to greatest energy.
Radio, micro, infrared, visible light, ultra violet, x-rays, and gamma.
Satellite radio uses...
digital signals.
The intensity of a wave, or volume, refers to the...
Amplitude.
What is the relationship between wavelength and frequency?
The longer the wavelength, the lower the frequency.
Define refraction.
When light passes from one medium into another and is forced to change speeds and bend due to different medium consistencies.
This wavelength is responsible for thermal imaging and night vision.
Infrared
The process of converting units from a graph into binary code and back again is called...
Sampling
Frequency is measured in...
Hertz
What kind of wave is sound?
Longitudinal compression wave requiring matter to move.
Light is considered to be what type of wave?
Transverse
Electromagnetic waves require matter/mediums to travel.
True or false?
False
Analog signals are continuous waves subject to noise and interference.
True or false?
True
When a wave is passing through matter, we call that matter...
a medium.
How many times faster does sound travel through metal than air?
Seventeen