A
The type of wave that an EM wave is (think about the structure of the wave)
What is a transverse wave?
A field produced by a changing electric field
What is a magnetic field?
Earth's most important source of energy
What is the Sun?
The range of electromagnetic waves with different frequencies and wavelengths
What is electromagnetic spectrum?
EM waves used to see bones
What are x-rays?
A wave that can travel through both matter and empty space
What is an electromagnetic wave?
A field produced by a changing magnetic field
What is an electric field?
Three types of EM waves produced by the Sun
What are ultraviolet, infrared, and visible waves?
EM waves you can detect with your eyes
What is visible light?
EM waves used to treat cancer
What are gamma rays?
Formula for wave speed
What is wavelength x frequency?
How EM waves travel
What is away from their source in all directions?
An area of force (magnetism) around a magnet
What is a magnetic field?
EM waves that have the lowest frequencies and carry the least energy
What are radio waves?
EM waves produced by all matter; can be felt as warmth at longer wavelengths
What are infrared waves?
Energy carried by EM waves
What is radiant energy OR electromagnetic radiation?
As wavelength increases, frequency does this
What is decreases?
The area of electric charge surrounding a charged particle
What is an electric field?
EM waves that can cause skin damage and vitamin D production
What are ultraviolet waves?
EM waves used to cook food and communicate (cell phones & satellites)
What are microwaves?
The two fields that make up an EM wave
What are electric and magnetic fields?
As wavelength decreases, energy does this
What is increases?
The speed of electromagnetic waves in empty space (km/s)
What is 300,000 km/s?
EM waves with the highest frequency
What are gamma rays?
At least three ways we can detect EM waves
What is sight, feel, special cameras, goggles, or telescopes?