electromagnetic waves
What are electromagnetic waves
What is waves of electric and magnetic fields that travel through empty space
What is the primary natural source of electromagnetic waves
What is the sun
What are radio waves
What is a type of electromagnetic wave with the longest wavelength and lowest frequency
What does infrared imaging detect
what detects heat or thermal radiation
What are the main components of an electromagnetic wave?
What is the two main components are an electric field and a magnetic field
An everyday electronic device produces electromagnetic waves in the microwave range to heat food?
What is microwave
What is one common use of radio waves in everyday life
What are used for communication
How infrared cameras see in the dark
What is infrared radiation
How does the wavelength of an electromagnetic wave change as its frequency increases
What is as the frequency of an electromagnetic wave increases its wavelength decreases
How do atoms emit electromagnetic radiation when their electrons change energy levels
When electrons fall from a higher to a lower energy level, they release energy in the form of electromagnetic waves
How do radio waves compare to visible light in terms of wavelength and frequency?
what are radio waves have a much longer wavelength and a much lower frequency than visible light.
What part of the electromagnetic spectrum does infrared imaging use
The infrared part of the spectrum, which lies just beyond visible red light in terms of wavelength
List these types of electromagnetic waves from lowest to highest energy: X-rays, radio waves, visible light.
What are radio waves, visible light, X-rays?
A type of electromagnetic wave is produced by rapidly accelerating charged particles, such as in radio transmitters?
A kind of device is used to both transmit and receive radio waves.
What is an antenna
One scientific or medical use of infrared imaging
It is used in medicine to detect inflammation or abnormal blood flow
This equation shows how the speed of a wave is the product of its frequency and wavelength
What is v=fλ
A kind of high-energy electromagnetic radiation is produced in particle accelerators and certain types of nuclear reactions
What are gamma rays
Why can radio waves travel long distances around Earth
what can reflect off the ionosphere, allowing them to bounce.
How infrared imaging useful in astronomy for viewing objects hidden by dust clouds?
Because infrared waves can pass through dust clouds that block visible light