Vocabulary
The bending of a wave as it changes speed when moving from one medium to another
Refraction
The wave with the longest wavelength in the EM spectrum
Radio Waves
Used in hospitals to see your bones
X-rays
Car radios, Walkie-talkies, TV signals, Wi-Fi
Radio waves
Which color has the longest wavelength in visible light?
Red
The material through which a wave travels
Medium
The only waves humans can see
Visible light
Helps you heat up food quickly
Microwaves
Night vision cameras, remote controls, heat lamps
Infrared waves
Which color has the shortest wavelength in visible light?
Violet
The number of wave crests passing a point in a certain amount of time.
Frequency
Bees can see these waves, but humans can’t
Ultraviolet (UV)
Waves that do not need a medium to travel.
Electromagnetic waves
Sound bends around obstacles
Hearing around a corner
Diffraction
The range of electromagnetic waves we can see is called
Visible light
The height of a wave from rest to crest.
Amplitude
These waves have the highest energy and can cause cancer.
Gamma Rays
Used in Wi-Fi and Bluetooth technology
Microwaves / Radio waves (both accepted)
Black shirt heats up in sun
Surface absorbs energy
Absorption
When white light passes through a prism, the colors separate because of what wave behavior?
Refraction
A disturbance that transfers energy from place to place.
Wave
You feel these as heat, even if you can’t see them
Infrared wave
Waves given off by extremely hot objects and nuclear explosions
Gamma rays
Sunburns, Tanning beds and UV sanitizers
UV Ultraviolet
The order of colors in visible light can be remembered as this acronym.
ROYGBIV