Part 1
How fast do electromagnetic waves travel?
speed of light
Does electromagnetic radiation behave like a wave or a particle?
both
What kinds of waves did television use for broadcasts?
radio waves
What are the 3 types of light?
ultraviolet light, visible light, infrared light
Name a use for x-rays?
see luggage at airports, images of bones and teeth,
lower wavelengths have _________ frequencies
lower
Who proposed the wave-particle theory of electromagnetic radiation?
Albert Einstein
What kind of waves do cell phones use to send information and calls on?
microwaves
What type of light can be felt as heat?
infrared light
Name one reason x-rays are dangerous
they can penetrate the body, damage cells and cause cancer
higher frequency
What famous experiment is evidence that electromagnetic energy acts like a wave and particle at the same time?
double-slit experiment
What does RADAR stand for?
Radio Detection and Ranging
What gives off infrared light?
sun, living things, anything with heat
What type of wave in the electromagnetic spectrum has the most energy?
Gamma rays
What is the full range of electromagnetic radiation called?
electromagnetic spectrum
What type of electromagnetic wave has the longest wavelength, lowest frequencies and least amount of energy?
radio waves
when microwaves reflect off objects, we can determine their location, speed and direction
What is the order of colors in visible light?
Red, Orange, Yellow, Green, Blue, Indigo, Violet
ROY G. BIV
radioactive atoms, nuclear explosions, stars
List all the types of waves in the electromagnetic spectrum from longest wavelength to shortest wavelength
radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, gamma rays
What is the difference between AM waves and FM waves for encoding in radio waves?
AM changes the amplitude and FM changes the frequency of the waves
What type or types of electromagnetic energy does the Sun give off?
all of them, the entire electromagnetic spectrum
What type of light can be used to kill germs and damages the skin?
ultraviolet light
Name one way Florida was changed because of the space race?
new jobs/industries, cities grew, education in schools changed, space tourism, more money,...