Light Waves 1
Light Waves Properties
Light Waves 2
Comparing sound and light waves
Light Waves 3
99
The energy in an electromagnetic wave is _________ and _________
Electric and Magnetic
99
What is a massless bundle of concentrated electromagnetic energy
Photon
99
Number 1
wavelength
99
What type of wave is a sound wave?
Longitudinal Wave
99
#4
crest
200
How did Empedocles and Huygen view Light
As a Wave
200
What is the speed of light?
300,000 km/s
200
#2
Trough
200
What is the speed of sound
340 m/s
200
What type of wave is Light?
Transverse wave
300
Who thought vision resulted from streamers or filaments emitted by the eye making contact with an object
Socrates, Plato, Euclid
300
What are opaque materials
Light is absorbed and creates kinetic energy heat
300
What are the highest energy waves of the electromagnetic spectrum called?
Gamma Rays
300
Which wave is electromagnetic: transverse or longitudinal
Transverse wave
300
What type of eclipse is when the shadow of the moon falls on the Earth?
Solar Eclipse
400
How did Einstein view light
That light consisted of tiny particles and a wave
400
What is the source of electromagnetic waves
Vibrating charged particles (electrons)
400
Grazing light reflected from a lake surface is polarized
Horizontally
400
True or False: Light transmits UV and visible light but not infrared waves
False- glass vibrates blocks infrared and UV
400
Heat lamps give off what type of waves
infrared waves
500
Light waves travel fastest through what?
Empty Space
500
Why are metals shiny
Light waves vibrate free electrons in the metal which then reemit the light.
500
What are all the colors of visible light?
*Bonus 100 points if you name them IN ORDER from least amount of frequency to highest amount of frequency*
Red, orange, yellow, green, blue, indigo, violet/purple
500
Compared to the average speed of light in air, the average speed of light in water is
slower, less
500
name the different waves that make up the electromagnetic spectrum
radio, microwave, infrared, light, ultraviolet, x-ray, Gamma