Wave that carries the signal from a radio station to your radio
What is a radio wave?
100
Created by a changing electric field
What is a changing magnetic field?
100
A wave that is made from vibrating electric charges and can travel through space where matter is not present.
What is an electromagnetic wave?
100
A method of finding position is radar- radar stands for...
What is Radio Detecting and Ranging?
100
These tubes produce the images you see on television.
What is cathode-ray tubes?
200
Radio waves with wavelengths of less than one meter.
What is a microwave?
200
He discovered that by shining light on a metal, electrons were ejected from the metal.
Who is Heinrich Hertz?
200
These waves require matter to transfer energy.
What are sound and water waves?
200
Microwaves can be used in the kitchen for this daily task.
What is heating food in the microwave?
200
This is the specific frequency on the electromagnetic wave that a radio station is assigned.
What is a carrier wave?
300
Waves that transmit thermal energy as warmth you can feel.
What are infrared waves?
300
A particle of light whose energy depends on the frequency.
What is a photon?
300
The type of energy carried by EM waves.
What is radiant energy?
300
These are used to kill diseased cells and can also damage healthy cells.
What are gamma rays?
300
Transmits one radio signal and receives another radio signal from a base unit.
What is a transceiver?
400
Two ultra-high frequency EM waves that can travel through matter.
What are x-rays and gamma rays?
400
When these are sent through two narrow slits, they behave as a wave.
What is electrons?
400
Electromagnetic waves are produced when an electric charge does this
What is vibrates?
400
These are two types of ultraviolet waves that can damage skin and cause cancer.
What are UVA and UVB rays?
400
A system of satellites, ground monitoring stations, and receivers that provide detailed information about your exact location at or above Earth's surface.
What is the Global Positioning System?
500
Waves that carry enough energy to enter and damage skin cells.
What are ultraviolet waves?
500
These are two of the ways that all waves can be described.
What is by their frequency and their wavelength?
500
The speed of a waves depends upon...
What is the material in which they travel through?
500
Also known as an "MRI", this technology provides a safe alternative to x-ray imaging.
What is Magnetic Resonance Imaging?
500
These signals use both amplitude and frequency modulation.