Chapter 9: EM Radiation Flashcards
A __ is a small, discrete bundle of energy
photon
An atom with an electric charge is referred to as:
an ion
An atom with more electrons than protons will have what charge?
Negative
Electromagnetic energy includes which of the following properties?
(1) Electric
(2) Magnetic
(3) Mechanical
Electric and Magnetic only
In a sine wave, the distance from one peak to another is called:
the wavelength
Particles associated with electromagnetic radiation that have no mass or electric charge are:
x-ray photons
Radiations along the electromagnetic spectrum will vary according to their
a. frequencies
b. wavelengths
c. velocities
d. mass
frequencies and wavelengths
the height of a sine wave is called:
Amplitude
The shape of all electromagnetic radiations follow a form known as a/an:
sine curve
The smallest possible unit of electromagnetic energy is the:
photon
Which term accounts for the number of waves that pass a set point in a set amount of time?
Frequency
X-radiation is most like a:
(a) wave of interacting electric and magnetic fields, traveling through space
(b) particle that can collide with other particles
a and b
X-rays make up which part of the energy spectrum: short wavelength
long wavelength
everyday energies
radon energies
short wavelength
X-ray photons have:
-no mass and no charge
-a negative charge and no mass
-a negative charge and a mass / weight of 1 amu
-a positive charge and no mass
no mass and no charge
X rays:
-can not penetrate matter
-can be seen
-travel in straight lines as waves
-travel at the speed of 150 mm per millisecond
travel in straight lines as waves
