Vocabulary
The entire range of the electromagnetic waves is known as _______
the electromagnetic spectrum
Electromagnetic waves are different from sound wave because they can travel through this?
Empty Space
What type of waves require matter to carry energy?
sound
Which of the following devices uses infrared waves?
1. cellular telephone
2. satellite
3. television remote control
4. radar
3. television remote control
These rays are used for mapping space, fixing cracked pipes, and treating cancer patients.
gamma waves
What are the two components that compose Electromagnetic waves ?
Electric and magnetic components
The amplitude of a transverse wave is the distance between the wave's resting point and a ( must have both correct responses)
crest or trough
As the frequency of an electromagnetic wave increases, the wavelength _______.
decreases
Longitudinal electromagnetic waves travel __________ to the energy of the wave.
Parallel
These waves are used in night vision googles.
infrared
These waves are used for Bluetooth, mobile communication, and audio transmissions.
radio waves
Wavelengths between 750 and 400 billionths of a meter that can be detected by the human eye
visible light
What disturbances are perpendicular to the direction the energy is traveling?
transverse waves
The energy of electromagnetic waves _________ with increasing frequency.
increases
Transverse electromagnetic waves travel _________ to the energy in the wave.
Perpendicular
These waves have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum; can be used in cancer treatment
Gamma waves
These waves are used in smart lighting and smart homes and naked eyes can sense them.
Visible Light
System of satellites, ground monitoring stations, and receivers that can determine a person’s location. What sort of EM waves is used in GPS?
1. Gamma rays
2. X rays
3. Radio waves
4. Visible light.
3. Radio waves
What is the proper term for the number of disturbances that pass a fixed point in a given amount of time ?
frequency
The electromagnetic spectrum starts with the lowest ___________ and the longest_________.
lowest frequency
longest wavelength
An electromagnetic wave travels ___________ in air and ___________ in water.
air = faster
water = slower
In visible light the red color has ___________ frequency and the blue color has _________frequency.
red = low
blue = high
These waves can be used in communication, heating, and are considered a high-frequency radio wave.
Microwaves
Waves with wavelengths between 1 millimeter and 1 meter that are used for communications and heating food
Microwaves
What is the uniform substance a wave travels through?
Medium
This electromagnetic wave has the highest frequency and shortest wavelength in the spectrum.
Gamma
Gamma waves have the _________frequency and the _____________ wavelength.
highest frequency
shortest wavelength
A gamma wave has the __________ wavelength and the _____________ frequency.
shortest wavelength
highest frequency
This type of treatment keeps it very clean, very sterile, very demure.
Ultraviolet Sterilization
Wavelengths between 400 and 40 billionths of a meter that can cause skin cancer with prolonged exposure
Ultraviolet
a repeating disturbance that carries energy from one point to another
wave
When a beam of green light passes from air to a denser medium such as water, the rays will bend, or _____ due to the change in speed.
refract
The higher the amplitude of the Electromagentic wave, the greater the amplitude and ___________.
Energy
These wave frequencies are higher than violet visible light on the EM spectrum, and are thus biologically hazardous.
UV lights
X rays
gamma waves
These waves are used in: airports, medical and dental clinics.
X Rays
Wavelengths less than 10 trillionths of a meter that are used for screening devices in airports
X rays