Vocabulary
A decrease in the amplitude.
What is damping?
The term for the top, highest point of a wave.
What is the crest?
Travels in waves, consisting of oscilating electric and magnetic fields.
What is electromagnetic radiation?
Best known for their use in communication devices.
What are radio waves?
Used for radio, TV, and cellphones.
What are radio waves?
Time to complete one wave cycle.
What is a period?
The distance between two corresponding parts of a wave, such as crest to crest.
What is a wavelength?
Has wavelengths from 1 millimeter to 1 meter and frequencies between 300MHz and 300GHz.
What is microwave radiation?
Invisible to the human eye but can be felt as heat. Best known for its use in heating applications such as electrical heaters, hear lamps, etc.
What are infrared waves?
Used for communication and cooking.
What are microwave waves?
The total energy supplied to a system.
What are energy inputs?
The number of wave cycles that pass a given point in one second.
What is frequency?
Best known for use in imaging bones since they can pass through skin but not through denser tissues such as bones and teeth.
What is x-ray radiation?
Is a component of sunlight and is responsible for suntans as well as the production of vitamin D by the skin.
What are ultraviolet waves?
Used for heating and IR imaging.
What are infrared waves?
The useful work or energy produced by a system?
What are energy outputs?
The term for the lowest point on a wave.
What is a trough?
Is emitted from the nucleus of radioactive atoms. Can pass deeply into the body and require thick, dense shielding to stop.
What is gamma ray radiation?
Can penetrate through most matter, and are best known for their use in body imaging. They can pass through skin, but not through denser tissues such as bone and teeth.
What are x-ray waves?
Used for illumination and photography.
What is visible light?
Any change in a organisms DNA or RNA sequence.
What is a mutation?
Wave length x frequency.
What is wave speed?
Has the power to create ions by removing electrons from atoms disrupting chemical bonds and damaging DNA
What is ionizing radiation?
Produces by nuclear fusion reactions as in stars and by radioactive decay. Have the most energy of any EM wave and can penetrate all materials.
What are gamma ray waves?
Used for tumor killing and astronomy.
What are gamma rays?