Bushong Chapter 3 Questions with Correct Answers Rated 100%
Define electromagnetic energy - Answers Energy that has both electric and magnetic properties, that is
present everywhere, and exists over a wide range.
Define photon (quantum) - Answers Energy disturbances that move through space at the speed of light.
Photon is used interchangeably with what other name? - Answers Electromagnetic energy
How much mass does a photon have? - Answers A photon carries no mass
What is the smallest quantity of any type of electromagnetic energy that moves through space at a high
speed of light - Answers A photon
How do photons travel through space? - Answers In a sine wave
What is considered the "building block" of energy? - Answers A photon
How does electromagnetic energy travel? - Answers Electromagnetic energy travels in sine waves
How are sine waves described mathematically? - Answers As amplitude/ time
Electromagnetic sine waves are characterized by what? - Answers Their velocity, frequency, wavelength,
amplitude, and period
What is the velocity of all electromagnetic energy? - Answers The speed of light (3 x 10^8 m/sec)
How is the velocity of all electromagnetic energy represented in equations? - Answers It is represented
in equations by "c"
Define frequency - Answers The number of wavelengths that passes over a given distance in a given
amount of time
How is frequency measured? - Answers It is measured in Hertz (Hz) or cycles per second
Define period - Answers The time required to complete one cycle of a wave
Define wavelength - Answers The distance between two corresponding points on a wavelength
- Distance between crest to crest or trough to trough
Define amplitude - Answers The height of the sine wave measured from 1/2 the range from crest to
valley over which the sine wave varies
Amplitude is equal to what? - Answers 1/2 the magnitude of a sine wave
The intensity of a sine wave is known as its what? - Answers Amplitude
, Amplitude and strength have what type of relationship? - Answers Direct, as one increases the other
also increases
What is the wave equation of general sinusoidal variations? - Answers Velocity = Frequency x
Wavelength
What is the relationship between frequency and velocity? - Answers Direct, as one increases so does the
other
What is the wave equation of electromagnetic energy sinusoidal variations? - Answers C = Frequency x
Wavelength
What is the relationship between wavelength and frequency at the speed of light? - Answers Inverse, as
one increases the other must decrease
The electromagnetic spectrum includes what? - Answers The entire range of electromagnetic energy
The electromagnetic spectrum exists as what? - Answers A continuum; an uninterrupted ordered
sequence
What is the only difference between energies on the electromagnetic spectrum? - Answers The only
differences between energies are their wavelength and frequency
Energy and frequency along the electromagnetic spectrum have what type of relationship? - Answers
Direct, as one increases so does the other
Which form of electromagnetic energy has the least amount of energy? - Answers Radio waves have the
least amount of energy, the longest wavelength, and the lowest frequency
What scale of measurement is used for the electromagnetic spectrum? - Answers None. There is no
designated scale of measurement for the electromagnetic spectrum
There are three different scales of measurement used for the electromagnetic spectrum. What are they?
- Answers One for energy, one for wavelength, and one for frequency
Energy is measure in what? - Answers Electron volts or KeV
Wavelength is measured in what? - Answers Meters
What is frequency measured in? - Answers Hertz (Hz)
Gamma rays and x-rays are examples of what? - Answers Energy
Gamma rays and x-rays are measured in what? - Answers Electron volts or KeV
Ultraviolet light, visible light, and infrared light are measured in what? - Answers Wavelengths and
meters
Define electromagnetic energy - Answers Energy that has both electric and magnetic properties, that is
present everywhere, and exists over a wide range.
Define photon (quantum) - Answers Energy disturbances that move through space at the speed of light.
Photon is used interchangeably with what other name? - Answers Electromagnetic energy
How much mass does a photon have? - Answers A photon carries no mass
What is the smallest quantity of any type of electromagnetic energy that moves through space at a high
speed of light - Answers A photon
How do photons travel through space? - Answers In a sine wave
What is considered the "building block" of energy? - Answers A photon
How does electromagnetic energy travel? - Answers Electromagnetic energy travels in sine waves
How are sine waves described mathematically? - Answers As amplitude/ time
Electromagnetic sine waves are characterized by what? - Answers Their velocity, frequency, wavelength,
amplitude, and period
What is the velocity of all electromagnetic energy? - Answers The speed of light (3 x 10^8 m/sec)
How is the velocity of all electromagnetic energy represented in equations? - Answers It is represented
in equations by "c"
Define frequency - Answers The number of wavelengths that passes over a given distance in a given
amount of time
How is frequency measured? - Answers It is measured in Hertz (Hz) or cycles per second
Define period - Answers The time required to complete one cycle of a wave
Define wavelength - Answers The distance between two corresponding points on a wavelength
- Distance between crest to crest or trough to trough
Define amplitude - Answers The height of the sine wave measured from 1/2 the range from crest to
valley over which the sine wave varies
Amplitude is equal to what? - Answers 1/2 the magnitude of a sine wave
The intensity of a sine wave is known as its what? - Answers Amplitude
, Amplitude and strength have what type of relationship? - Answers Direct, as one increases the other
also increases
What is the wave equation of general sinusoidal variations? - Answers Velocity = Frequency x
Wavelength
What is the relationship between frequency and velocity? - Answers Direct, as one increases so does the
other
What is the wave equation of electromagnetic energy sinusoidal variations? - Answers C = Frequency x
Wavelength
What is the relationship between wavelength and frequency at the speed of light? - Answers Inverse, as
one increases the other must decrease
The electromagnetic spectrum includes what? - Answers The entire range of electromagnetic energy
The electromagnetic spectrum exists as what? - Answers A continuum; an uninterrupted ordered
sequence
What is the only difference between energies on the electromagnetic spectrum? - Answers The only
differences between energies are their wavelength and frequency
Energy and frequency along the electromagnetic spectrum have what type of relationship? - Answers
Direct, as one increases so does the other
Which form of electromagnetic energy has the least amount of energy? - Answers Radio waves have the
least amount of energy, the longest wavelength, and the lowest frequency
What scale of measurement is used for the electromagnetic spectrum? - Answers None. There is no
designated scale of measurement for the electromagnetic spectrum
There are three different scales of measurement used for the electromagnetic spectrum. What are they?
- Answers One for energy, one for wavelength, and one for frequency
Energy is measure in what? - Answers Electron volts or KeV
Wavelength is measured in what? - Answers Meters
What is frequency measured in? - Answers Hertz (Hz)
Gamma rays and x-rays are examples of what? - Answers Energy
Gamma rays and x-rays are measured in what? - Answers Electron volts or KeV
Ultraviolet light, visible light, and infrared light are measured in what? - Answers Wavelengths and
meters
