Waves and Electromagnetic Spectrum
Which type of wave is used in heat lamps?
Infrared waves
Another name for heat energy is...
Infrared waves. These cannot be seen by your eyes but can be felt by your skin.
Which type of electromagnetic radiation has the lowest frequency?
Radio waves
Which type of wave would TV broadcast signals be categorized?
Radio waves
These waves are used to penetrate solids and are used in doctor's offices and in airports.
X Rays
This electromagnetic radiation would be used by an oncologist (a physician who studies and treats cancer).
gamma rays
To keep baby chicks warm, the lamp used would be this type of electromagnetic radiation.
infrared waves
The electromagnetic Spectrum represents...
the different forms of electromagnetic radiation
What is the bottom of a wave called?
through
To examine the inside of an oil pipe, technicians would use this type of electromagnetic radiation.
x-rays
What is radiant energy?
Energy that travels by radiation. An example of this is light.
True or False. Radio waves, microwaves, and ultraviolet waves all have longer wavelengths than visible light.
False.
Which type of electromagnetic radiation is the most dangerous?
Gamma Rays. These have the highest energy of all electromagnetic radiation, they are the most damaging to human tissue.
What is the amplitude of a wave?
The maximum distance that matter is displaced from the resting position.
What is frequency?
The number of waves per unit of time.
True or False. Both X rays and gamma rays have higher frequencies than ultraviolet rays.
True
True or false. Radiant energy spreads out from its source in all directions.
True
True or False. The Sun radiates both visible energy and invisible energy.
True.
What type of wave is used by insects to locate nectar?
Ultraviolet
Which type of electromagnetic radiation can result in sunburns and skin cancer?
Ultraviolet Radiation
A hospital uses this type of electromagnetic radiation to keep surgical equipment sterile.
Ultraviolet waves
What are transverse waves?
Waves that occur when the motion of the medium is at right angles (perpendicular_ to the direction of the wave.
What are longitudinal waves?
Waves that occur when the motion of the medium is parallel to the direction of the wave.
The top of a wave is called the...
crest.
Your cell phone is a type of this electromagnetic radiation
radio waves
What type of wave has a color spectrum known as ROYGBIV?
visible light
What is the distance between one point of a wave to the same point in the next wave called?
wavelength
True or False. Communicating with satellites is an application of gamma rays.
False. Communicating with satellites is an application of radio waves.
True or false. Electromagnetic radiation includes only visible light waves.
False. Electromagnetic radiation includes ALL of the electromagnetic spectrum.
True or False. X-rays have more energy than gamma rays.
False. Gamma rays have more energy than x rays
True or false. Microwaves are a type of infrared wave.
False. Microwaves are a type of electromagnetic radiation.
Which type of wave has the shortest wavelength and the highest frequency?
Gamma Rays