Deck 3: Electromagnetic and Particulate Radiation

Question 1

Different electromagnetic radiations are put in order by the

A) electromagnetic table
B) electromagnetic spectrum
C) electromagnetic chart
D) electromagnetic list

Answer 1

electromagnetic spectrum

Question 2

In the formula E = hf, energy is measured in

A) volts
B) amps
C) frequency volts
D) electron volts

Answer 2

electron volts

Question 3

When considering the wave properties of electromagnetic radiation, the maximum height of a wave is

A) wavelength
B) amplitude
C) frequency
D) velocity

Answer 3

amplitude

Question 4

In the formula E = hf, E represents

A) Planck's constant
B) frequency
C) energy
D) electricity

Question 5

Frequency is typically measured in

A) hertz
B) feet
C) centimeters
D) meters

Question 6

Electromagnetic theory was developed in the late 1800s by

A) Bohr
B) Rutherford
C) Maxwell
D) Planck

Question 7

Which of the following electromagnetic radiations have the lowest energy level?

A) X-rays
B) Visible light
C) Microwaves
D) Radio waves

Question 8

Electromagnetic radiation is a form of energy that originates from

A) electricity
B) magnetism
C) the atom
D) something moving in space

Question 9

The formula E = hf demonstrates that

A) as frequency increases, energy decreases
B) as frequency increases, energy increases
C) as energy increases, heat decreases
D) as energy increases, heat increases

Question 10

As a wave's wavelength increases, its frequency

A) stays the same
B) increases
C) decreases
D) it depends on the type of electromagnetic radiation

Question 11

When considering the wave properties of electromagnetic radiation, the number of waves that pass by a given point per second is

A) wavelength
B) amplitude
C) frequency
D) velocity

Question 12

Which of the following is not part of the electromagnetic spectrum?

A) Visible light
B) Microwaves
C) Sound
D) Gamma rays

Question 13

Microwaves travel at a velocity of

A) 3 * 106 m/s
B) 3 * 107 m/s
C) 3 *108 m/s
D) 3 * 109 m/s

Question 14

When considering the wave properties of electromagnetic radiation, the distance from the peak of one wave to the next is

A) wavelength
B) amplitude
C) frequency
D) velocity

Question 15

What kind of disturbance does electromagnetic radiation NOT cause?

A) electrical
B) mechanical
C) magnetic

Question 16

In the formula E = hf, f represents

A) Planck's constant
B) frequency
C) energy
D) electricity

Question 17

Electromagnetic radiation

A) has no mass
B) has significant mass
C) has varying amounts of mass
D) none of these

Question 18

In the formula E = hf, h represents

A) Planck's constant
B) frequency
C) energy
D) electricity

Question 19

Wavelength is generally measured in

A) hertz
B) feet
C) centimeters
D) meters

Question 20

As the wave's frequency increases, the wavelength

A) stays the same
B) increases
C) decreases
D) it depends on the type of electromagnetic radiation

Question 21

The process of removing an electron from an atom is

A) annihilation
B) atomization
C) ionization
D) none of these

Question 22

Gamma rays are produced

A) from unstable atoms
B) using fast-moving electrons
C) using fast-moving atoms
D) using fast-moving metals

Question 23

The inverse square law relates the intensity (of light/x-rays) to

A) velocity
B) time
C) mass
D) distance

Question 24

Microwaves heat up food because their energy causes the atoms and molecules to

A) dissolve
B) expand
C) vibrate
D) contract

Question 25

An object we see as white is _______________ all of the wavelengths of visible light.

A) absorbing
B) diffusing
C) reflecting
D) changing

Question 26

The electromagnetic radiation that passes between the television remote and television is

A) visible light
B) infrared light
C) microwaves
D) ultraviolet light

Question 27

What is the frequency of electromagnetic radiation if the wavelength is 1 * 10-4 m?

A) 3 * 10-12 Hz.
B) 3 *10-4 Hz.
C) 3 *104 Hz.
D) 3 * 1012 Hz.

Question 28

Particulate radiation does NOT include:

A) alpha particles
B) x-ray particles
C) beta particles

Question 29

Radio waves are used in

A) computed tomography
B) ultrasound
C) radiography
D) magnetic resonance imaging

Question 30

What characteristics of electromagnetic waves can the formula be used to calculate?

A) frequency and wavelength
B) frequency and velocity
C) velocity and wavelength

Question 31

When the formula is changed to , the c represents the constant symbol for:

A) wavelength
B) frequency
C) amplitude
D) the speed of light

Question 32

An object we see as black is _______________ all of the wavelengths of visible light.

A) absorbing
B) diffusing
C) reflecting
D) changing

Question 33

The electromagnetic radiation used in tanning beds is

A) visible light
B) infrared light
C) microwaves
D) ultraviolet light

Question 34

The general process of a radioactive element giving off excess energy and particles to regain stability is

A) radioactivity
B) radioactive decay
C) ionization
D) electron emission

Question 35

X-rays and gamma rays differ in

A) the energy source that produces them
B) the effect they have on matter
C) their energy level
D) all of these

Question 36

X-rays are produced

A) from unstable atoms
B) using fast-moving electrons
C) using fast-moving atoms
D) using fast-moving metals

Question 37

Alpha and beta particles are similar to x-rays and gamma rays in that they

A) have no mass
B) are part of the electromagnetic spectrum
C) have the energy to ionize matter
D) have characteristics of wavelength and frequency

Question 38

Radioactive elements

A) have excess energy in their nuclei
B) emit particles and energy
C) are trying to become stable elements
D) all of these

Question 39

What is the wavelength of electromagnetic radiation if the frequency is 3 * 1010 m?

A) 1* 10-2 m.
B) 1 * 102 m.
C) 3 *10-2 m.
D) 3 * 102 m.

Question 40

An ion pair is

A) an electron and proton
B) a proton and neutron
C) an atom and the electron that was removed from it
D) an atom with an extra electron and an atom that is missing an electron

Question 41

All of the electromagnetic radiations are capable of ionizing matter.

Question 42

Electromagnetic energy cannot travel through a vacuum.

Question 43

When the alpha particle picks up two electrons as it passes through air it becomes a

A) neutral atom of hydrogen
B) radioactive atom of hydrogen
C) neutral atom of helium
D) radioactive atom of helium

Question 44

A negatively charged beta particle behaves the same as a(n)

A) proton
B) neutron
C) electron
D) positron

Question 45

The half-life of technetium-99m is 6 hours. How many unstable atoms will remain after 12 hours?

A) One sixth of the original amount.
B) One fourth of the original amount.
C) One third of the original amount.
D) Half of the original amount.

Question 46

Higher energy radiation acts more like waves than like particles.

Question 47

We are exposed to non-medical ionizing radiation everyday categorized as natural or background radiation.

Question 48

Half-life is

A) the rate at which a radioactive material decays
B) half the time it takes for all the radioactivity to decay
C) the rate at which particulate radiation is emitted from a radioactive atom's nucleus
D) none of these

Question 49

The beta particle is an electron that is emitted from an outer shell.

Question 50

All electromagnetic radiation travels at the same speed.

Question 51

Electromagnetic radiation has properties of a wave and a particle.

Question 52

As compared to an alpha particle, a beta particle

A) has less mass
B) has more mass
C) has the same mass
D) is less penetrating

Question 53

An alpha particle is the same as the nucleus of a(n)

A) hydrogen atom
B) oxygen atom
C) carbon atom
D) helium atom

Question 54

Which of the following is NOT a source of manmade ionizing radiation?

A) x-rays
B) radiopharmaceuticals used in nuclear medicine
C) gamma rays
D) all are mand made ionizing radiation

Question 55

The positively charged beta particle is a(n)

A) electron
B) alpha particle
C) negatron
D) positron

Question 56

When compared with a beta particle, the alpha particle is

A) much smaller
B) much larger
C) more penetrating
D) none of these

Question 57

All radioactive elements occur naturally.

Question 58

Alpha particles consist of

A) two protons and two electrons
B) two protons and two neutrons
C) two electrons and two neutrons
D) none of these

Question 59

X-rays and gamma rays are the only electromagnetic radiations that are able to ionize matter.

Question 60

Half-life is defined as

A) half the time it takes for all of the remaining atoms in an amount of a radioactive element to decay
B) half the time it takes for half the remaining atoms in an amount of a radioactive element to decay
C) the time it takes for half the remaining atoms in an amount of a radioactive element to decay
D) none of these