Show:
Radio Waves
Using the Spectrum
Define the Terms
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100
We use radio waves for this purpose.
What is communication?
100
We use this part of the spectrum for looking inside the human body.
What is x-rays?
100
Radio detection and ranging. Used to determine location.
What is radar?
100
One of James Clerk Maxwell's discoveries.
What is electricity and magnetism travel together as a wave (coined the term electromagnetic)/predicted radio waves?
100
How GPS pinpoints your position.
What is intersects your position using three satellites?
200
These bands are used for AM radio.
What is MF?
200
DAILY DOUBLE!!! We use this part of the spectrum for radar.
What is microwaves?
200
radio-frequency identification. Used to track pets, in debit and credit cards, inventory control, and monitoring truck weights/collecting tolls, etc.
What is RFID?
200
The way microwaves heat up your food.
What is causes food particles to oscillate and give off thermal energy?
200
If an object is incandescent, it is doing this.
What is being heated to glowing?
300
These bands are use for shortwave radio (long-range communications)
What is HF?
300
We use this part of the spectrum for destroying cancer cells.
What is gamma rays?
300
Any method of navigating a ship, plane, or other vehicle using radio-frequency signals.
What is radio navigation?
300
Purpose for infrared receptors in animals--and an animal that uses it.
What is directional navigation? Butterflies/beetles/snakes.
300
The part of the electromagnetic spectrum that we can see.
What is visible light?
400
These bands are used for FM radio.
What is VHF?
400
We use this part of the spectrum for heat.
What is infrared?
400
A continuum ranging from extremely low-frequency radio waves to extremely high-frequency gamma rays.
What is the electromagnetic spectrum?
400
A property of the human visual system that television technology utilizes.
What is limited ability to separate patterns of dots into separate objects or a limited ability to sense rapid movements?
400
DAILY DOUBLE!!!!! The reason why gamma rays are so destructive.
What is they carry the highest amount of energy per photon?
500
These bands are used primarily for military communications with submarines and between military command centers.
What is VLF and VF?
500
This part of the spectrum is used in medicine and medical treatments. It can also provide vitamin D or give you skin cancer.
What is ultraviolet radiation?
500
The bundle in which light travels. Acts as a particle and as a wave.
What is photons?
500
Benefits and drawbacks to radio astronomy.
What is we can find out many new things about space but the telescopes are large and expensive?
500
Something we have discovered about outer space using radio telescopes.
What is quasars and pulsars?