Waves
What type of wave moves up and down?
transverse wave
Why can you see light in space?
Light waves do not require a medium
How many regions are on the EM spectrum?
7
What makes the sky blue?
Scattering of light waves
What does the pitch change in a wave?
Frequency
What type of wave moves back and forth?
longitudinal wave
Can light have different effects on materials?
Yes
What is an example of something that emits UV light?
the sun, tanning beds, blacklight
What does it mean to transmit?
to pass through
What increases the overall energy of a wave?
Amplitude
What is frequency of a wave?
the number of wave cycles per one second. Measured in Hertz (Hz)
What term describes an object that lets some light pass through
Translucent
What is the shortest wavelength on the EM Spectrum?
gamma
Diffraction
What is the longest wavelength on the EM Spectrum?
radio waves
What is wavelength?
The distance between two crests of a wave
Which wave has the shortest wavelength on the spectrum?
Infrared waves are electromagnetic energy that give off what?
heat
When something absorbs all light, the object is called?
Opaque
Which has higher energy and frequency-x-rays or uv light?
x-rays
What happens to the wavelength as frequency increases?
The wavelength decreases
When light passes directly through an object without changing speed or direction?
Transmission
The EM spectrum is divided into different regions, in order of?
decreasing wavelength, increasing energy and frequency
What causes things to have specific colors?
The object absorbs all colors and reflects the color that we perceive.
What is the order of the 7 regions of the EM spectrum in order of increasing frequency?
radio, microwaves, infrared, visible light, uv, x-ray, gamma rays