Grade 6 Science Study Guide
Test Date: Wednesday, September 24th
Vocabulary word
x-ray
Wavelength
Definition
Waves used to penetrate solids
They are used in doctor’s offices and
airports
The distance between one point of a
wave to the same point in the next
wave
Frequency
The number of waves per unit of time
Visible light
The form of energy we can see
ROYGBV
Mechanical waves
Waves that disturb matter
The top of a wave
Crest
The bottom of a wave
Trough
Amplitude
Tells the intensity of the radiation
Electromagnetic spectrum
The range of all types of
electromagnetic radiation
Energy
Power- provides the power to do work
Radiation
Is the energy that travels and spreads
out as it moves
Transverse waves
Occurs when the motion of the
medium is at right angles to the
direction of the wave
Infrared waves
Waves are often used in heat lamps
Ultraviolet
Waves are used by insects to find
nectar
They also can give sunburn!
Radio waves
Waves that disturb electromagnetic
fields
Gamma waves
Have the shortest wavelength and the
highest frequency
Photon
Tiny particles of light that make up the
different forms of waves of the
electromagnetic spectrum
Examples of electromagnetic spectrum and important people
Types of electromagnetic spectrum
**from longest wavelength to the
shortest
Hans Christian Oersted
Michael Faraday
Radio wavesMicrowaves
Infrared
Ultraviolet
X rays
Gamma ray
He showed that an electric wire would
create a pattern of magnetism
He proved that you can use
magnetism to generate electricity
He developed electric motors and
electric generators
James Clerk Maxwell
Came up with a theory that explained
both electricity and magnetism
Heinrich Hertz
The first person to produce
electromagnetic waves in a lab
Radio waves
Carries the news and signals to tv and
cell phones
Microwaves
Heat food, used for radar images
Infrared
Night vision goggles
Visible light waves
The sun transmits UV radiation to Earth
Ultraviolet waves
Are visible to the human eye
X ray
So strong it allows doctors to look at
our bones
Gamma rays`
Doctors use them to kill diseased cells