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Definitions
Short Answer
THIS IS
RAYS
True or False
100
This consists of vibrating electric and magnetic fields that move through space at the speed of light.
What are electromagnetic Waves
100
What two models can explain the properties of electromagnetic waves
What are 1. wave model and 2. particle model
100
THIS IS the speed of light in a vacuum
What is 300,000 kilometers per second
100
These rays are electromagnetic waves with wavelengths just shorter than those of ultraviolet rays.
What are X-rays
100
All electromagnetic waves travel at the same speed in a vacuum.
What is true
200
This produces electric forces that can push or pull on other charged particles.
What is an electric field
200
Define Polarized light
What is the light that passes through vibrates in only one direction
200
THIS IS the answer when you multiply wavelength x frequency
What is Speed
200
This ray has the greatest amount of energy and are the most penetrating of all electromagnetic waves
What are gamma rays
200
All light passes through two polarizing filters that are placed at right angles to each other.
What is False....No light passes
300
when charged particles move it produces this
What is a magnetic filed
300
These are the SIX waves that make up the electromagnetic spectrum
What are: Radio, Infrared, visible, ultraviolet, x-rays, gamma
300
THIS IS what radar stands for:
What is RAdio Detection And Ranging
300
Astronomers think that explosions of stars in distant galaxies are one way of producing these rays
What are gamma rays
300
Infrared rays have a higher frequency than radio waves so they have LESS energy than radio waves.
What is FALSE .. they have MORE energy than radio waves
400
The energy that is transferred through space by electromagnetic waves
What is an electromagnetic radiation
400
Describe Radio Waves They have the _____________ wavelengths and lowest _______________
What are the longest wavelengths and lowest frequencies
400
This is an image that shows regions of different temperatures in different colors.
What is a thermogram
400
These rays in small quantities help your body produce Vitamin D
What are ultraviolet rays
400
Satellites in space use infrared cameras to study the growth of plants AND the motions of clouds
What is TRUE
500
These do not require a medium, so they can transfer energy through a vacuum.
What are electromagnetic waves
500
These waves are used in cellular phone communication, radar and a special oven named after them
What are microwaves.
500
These rays provide the energy that makes your morning toast.
What are infrared rays
500
This type of ray is used to find out if a steel or concrete structure has tiny cracks.
What are X-Rays
500
Large doses of ultraviolet rays are useful.
What is FALSE, Large doses can cause sun burns, cancer and damage your eyes.