History, Terms, and Characteristics pt 2 Flashcards
What is Radiation (X-rays)?
A form of electromagnetic energy (photon)
What are the seven different forms of electromagnetic energy (photons) from highest to lowest?
- Gamma Rays
- X-rays
- Ultraviolet
- Visible Light (white light)
- Infra-red
- Microwave
- Radio
What is Electromagnetic energy (photons)?
having electrical, wave-like properties and magnetic fields set up in space by vibrating electrons
How do you best describe a photon?
a bundle of energy
What are the three characteristics we use to distinguish one photon from another?
- Wavelength
- Frequency
- Velocity
What is a wavelength?
distance from one crest to another, one valley to another, or from one point on the sine wave to the next corresponding point
The shorter the wavelength, the __________ the energy level.
greater/higher
How is wavelength measured?
In meters or angstroms
X-ray= __ angstrom
-1 angstrom = (1 x 10^-10 m)
- 10 to .1 angstrom
What is Frequency? and How is it measured?
-The number of cycles per second. A cycle is one positive and one negative alternation.
- Measured in Hertz
As wavelength increases the frequency_______?
Decreases
As wavelength decreases the frequency_______?
Increases
The relationship of wavelength and frequency are__________?
Inversely proportional (oppositely related)
Energy level is directly related to _______?
Frequency
As frequency decreases energy levels _________?
Decrease
