EMR
What does "EMR" stand for?
ElectroMagnetic Radiation
What do you call the top of a wave?
Crest or Peak
What type of EMR wave is used in cell-phone communication
Radio wave or microwaves
What is the main use of a microwave radiation?
Cooking food or cell phone communication
Are sound waves a type of EMR wave?
No, they are mechanical waves
How many types of EMR are there (or how many types have we discussed)
There are 7 types
What do you call the low point on a wave
Trough or Valley
What type of EMR wave is used to see bones through flesh?
X-Ray
Do microwave ovens allow radiation out if working correctly?
What is the difference between EMR Waves and Mechanical Waves
EMR waves do not need a medium while mechanical waves do, due to travailing via vibration
What is the weakest form of EMR
Radio Waves
What is the measure of the distance from peak to peak or trough to trough?
Wavelength
What type of radiation does the sun produce primarily
Ultraviolet (UV) or Gamma Rays
Why do microwaves have a plate that spins?
The microwaves bounce around and in order to not cook unevenly it spins.
Give an example of a wave being absorbed, reflected, and transmitted
Examples may vary
What is the strongest form of EMR
Gamma Rays
What happens to energy levels as frequency increases?
What EMR Wave can be used to treat cancer?
X-Rays or Gamma Rays
What molecule(s) are most likely to heat up as a result of microwaves?
Water or fats
How fast are EMR waves moving?
The speed of light
What makes up the smallest part of the EMR Spectrum
Visible Light
What happens to frequency as wavelength increases?
Frequency decreases as we increase wavelength
What are some uses of infrared light?
Night vision camera, tv remote, etc
What produces the microwaves in the microwave oven?
The magnetron
List the 7 types of EMR waves in order of longest to shortest wavelength
Radio Waves, Microwaves, infrared, visible light, UV, X-Ray, Gamma Ray