EM Spectrum
What types of waves have electrical and magnetic properties?
electromagnetic waves
What are the primary colors of light?
red, green, and blue
What type of mirror curves outward?
Convex
What do we call a curved piece of glass that is used to refract light?
Lens
Which type of radiation in the EM Spectrum has the greatest amount of energy?
Gamma Rays
True or False: Electromagnetic waves require a medium to transfer energy
False
What happens when two primary colors of light are combined?
A secondary color
What type of mirror curves inward like a bowl?
Concave
What happens when light passes from air into water?
It refracts or bends
What happens to the light that an opaque object does not reflect?
it is absorbed
Which EM waves have the longest wavelength and lowest frequency?
radio waves
What primary colors of light does a tomato absorb?
Blue and Green
What happens when parallel light rays hit a bumpy surface?
diffuse reflection
What do we call the measure of how much a ray of light bends when it enters a new medium?
index of refraction
Which part of the EM spectrum is used to make images of bones and teeth?
X-Rays
What do we call the part of the EM spectrum that we can see?
visible light
What is the resulting color when the three primary pigments are mixed?
Black
True or False: A concave mirror can produce an image that is upside down and smaller than the object.
True
They bend away from the optical axis
What type of reflection occurs when rays of light hit a smooth surface?
regular reflection
What is the mnemonic device used to remember the EM spectrum?
Raging Martians Invade Venus Using X-ray Guns
What determines the color of a transparent object?
the color of light it transmits
What type of mirror is made from a flat sheet of glass and a silver coating?
plane mirror
What is the name for a double image of a distant object caused by the refraction of light due to temperature differences?
mirage
What type of images are made by an infrared camera?
thermograms