electromagnetic spectrum correct answers range of electromagnetic waves, including radio
waves, visible light, and x-rays, with different frequencies and wave lengths
gamma rays correct answers highest energy electromagnetic waves with the shortest wavelengths
and highest frequencies
infrared wave correct answers electromagnetic waves with wavelengths between 1mm and .7
millionths of a meter
radio waves correct answers lowest frequency electromagnetic waves that have wavelengths
greater than about .3 m and are used in most forms of telecommunications technology such as tv,
radio, and phones
ultraviolet radiation correct answers electromagnetic waves with a wavelength between .4
millionths of a meter and 10 billionths of a meter; has frequencies and wavelengths between
visible light and x rays
visible light correct answers electromagnetic waves with wave lengths between .4 and .7
millionths of a meter that can be seen with your eyes
x ray correct answers high energy electromagnetic waves that is highly penetrating and can be
used for medical diagnosis
electric and magnetic correct answers what two fields are electromagnetic waves made up of?
frequency correct answers the amount of energy that an electromagnetic wave carries is
determined by the wave's ____
higher correct answers the ___ the frequency, the more energy
300000 km/s correct answers all electromagnetic waves travel through space at the same speed,
____
8 correct answers it takes radiation from the sun ___ minutes to reach us
telecommunications correct answers we use electromagnetic waves to communicate across the
world through ___
windows and walls, do not harm correct answers radio waves are usually used to send and
receive info because they pass through _____ easily and _ __ ___ humans
amplitude or frequency correct answers to carry information on the carrier wave, either the ___
or ___ has to be modulated or changed
, amplitude modulated correct answers AM stands for ___
frequency modulated correct answers FM stands for __
radio wave or microwave correct answers for a electrical signal to be transmitted through the air,
it will be converted into either a ___ or ___
radio waves correct answers waves with the lowest frequency and carry the least energy
radio waves correct answers examples include tv signals, AM & FM radio signals
microwaves correct answers examples include cell phone and portable phone transmissions,
microwave ovens
infrared waves correct answers examples include the remote controls for tv and vcr
visible light correct answers waves that have wavelengths of between .7 and .4 millionths of a
meter
visible light correct answers examples include all the colors you see
ultraviolet light correct answers examples include sterilization devices and your body's
production of vitamin D
x rays correct answers waves that can penetrate your skin and muscle with frequencies higher
than ultraviolet waves
x rays correct answers examples include x ray machines
gamma rays correct answers highest frequency and the most penetrating power
ultraviolet light correct answers can kill bacteria & viruses and is used to study the sun
electromagnetic waves correct answers produced by charged particles in motion, travel through
space, transferring energy
wavelength and frequency correct answers electromagnetic waves have a ___ and ___
frequency correct answers the amount of energy in electromagnetic waves is determined by
_____
longest correct answers red light has the ___ wavelength
shortest correct answers blue light has the ___ wavelength