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Multiple Choice Quiz
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1

High frequency light moves __ low frequency light.
A)faster than
B)slower than
C)at the same speed as
D)with more amplitude than
2

The energy of light is __ related to the frequency and __ related to the wavelength.
A)inversely, directly
B)directly, inversely
C)not, directly
D)directly, not
3

A large amount of the solar energy coming to the Earth gets reflected back by __.
A)ozone
B)clouds
C)CO2
D)smog
4

Electron flow is called __.
A)photoelectrolysis
B)voltage
C)current
D)power
5

The oxidation number of oxygen in most compounds is __.
A)+1
B)-1
C)+2
D)–2
6

A fuel cell is most like a(n) __.
A)generator
B)battery
C)alternator
D)semiconductor
7

What is wavelength?
A)The length of a wave from one end to the other.
B)The number of waves that travel past a given point in one second.
C)The distance between successive peaks.
D)The height of a wave from the center to the peak.
E)The height of a wave from a trough to the closest peak.
8

What is frequency?
A)The height of a wave from the center to the peak.
B)The distance between successive peaks.
C)The length of a wave from one end to the other.
D)The number of waves that travel past a given point in one second.
E)The height of a wave from a trough to the closest peak.
9

If the wavelength of a yellow light is 589nm, what is the frequency?
A)7.98 x 1013 s-1
B)6.00 x 1015 s-1
C)5.09 x 1014 s-1
D)1.00 x 1014 s-1
E)7.98 x 1014 s-1
10

Which wavelength would a human be able to see?
A)1.69 x 10-3 m
B)6.90 x 10-12 m
C)5.20 x 10-7 m
D)5.47 x 102 m
E)4.75 x 10-6 m
11

What is the definition of photon?
A)The square of the quantity of energy that an atom can release or absorb as electromagnetic radiation.
B)The largest quantity of energy that an atom can release or absorb as electromagnetic radiation.
C)The average quantity of energy that an atom can release or absorb as electromagnetic radiation.
D)The smallest quantity of energy that an atom can release or absorb as electromagnetic radiation.
E)The inverse square of the quantity of energy that an atom can release or absorb as electromagnetic radiation.
12

A laser that gives off light energy in intervals of short duration has a frequency of 9.32 x 1014 s-1 and deposits 1.5 x 10-2 J of energy during each pulse. How many photons does each pulse deposit?
A)10 photon
B)2.4 x 1016 photon
C)4.2 x 1016 photon
D)8.2 x 105 photon
E)8.5 x 1021 photon
13

What is a spectrum?
A)The first ionization energy.
B)The time it takes an electron to orbit an atom one time.
C)The amount of energy an electron has in each spectra.
D)When radiation from a source is separated into its different wavelengths.
E)The amount the electron density varies from the center of an atom to the zero threshold point.
14

What is a line spectrum?
A)A very thin band of continuous wavelengths from the sun.
B)The complete spectrum of a laser.
C)The spectrum of a band of wavelengths from a laser.
D)A spectrum that contains only specific wavelengths of radiation.
E)A horizontal line through a continuous spectrum showing the various wavelengths of a particular atom.
15

What is monochromatic light?
A)The specific light that an atom needs to emit an electron.
B)The light that chromium emits when heated to extreme temperatures.
C)Light that enters a cathode ray tube in only one direction.
D)Light that is composed of only a single wavelength.
E)The smallest amount of light that an atom gives off when dropping energy states.
16

The ground state of an atom is considered
A)an atom that has only one electron in its closest shell.
B)to be the energy an atom has at 0 K.
C)the highest energy of an electron.
D)an atom that is not bonded to any other elements.
E)the lowest energy level of an atom.
17

The exited state of an atom is
A)when an electron has more energy than in the ground state.
B)the energy an atom has at 0 K.
C)the lowest energy of an electron.
D)an atom that is not bonded to any other elements.
E)an atom that is has only one electron in its closest shell.
18

Which of the following statements is true?
A)Gamma rays are higher in energy than microwaves.
B)Microwaves are lower in energy than radio waves.
C)Visible light is higher in energy than X-rays.
D)X-rays are lower in energy than ultraviolet radiation.
E)Radio waves are higher in energy than gamma rays.
19

Electromagnetic radiation of a wavelength 550nm is
A)infrared.
B)red.
C)green.
D)violet.
E)ultraviolet
20

A solution which appears orange probably absorbs strongly at:
A)300-350nm
B)350-400nm
C)450-500nm
D)600-650nm
E)700-750nm





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