Physics Unit 9
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Most properties of light could be explained by the ________ theory of light. | show 🗑
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| show | emission
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| As energy is added to an atom, its electrons shift to a(n) __________ energy level. | show 🗑
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| show | photon
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| Different amounts of energy produce light of different ____________. | show 🗑
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| show | protons
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| An atom in its normal state has the same number of protons as _________. | show 🗑
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| show | acceleration
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| According to classical physics, _____________ are in a constant state of acceleration. | show 🗑
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| An electron's energy never _____________ in its orbit. | show 🗑
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| Each element has its own characteristic _____________ of light. | show 🗑
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| A spectroscope produces a clear picture of an element's ____________. | show 🗑
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| As an element is heated, it incandesces, which means it emits _____________. | show 🗑
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| show | absorbs
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| show | the same as
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| ___________ believed that light consisted of a stream of particles, even though his experiments with lenses, mirrors, and glass plates suggested to him that light traveled in waves. | show 🗑
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| show | Thomas Young's
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| show | Max Planck's
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| show | Albert Einstein's
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| show | rise
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| show | ultraviolet catastrophe
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| show | electrons
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| show | frequency
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| The only way the photoelectric effect can be satisfactorily explained is by the ___________ theory of light. | show 🗑
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| Light arrives at its destination as ____________. | show 🗑
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| show | complementarity
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| show | Planck's constant
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| The planetary model of the atom has ___________ orbiting the nucleus of the atom. | show 🗑
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| The "raisin-pudding" model of the atom stated that electrons were in orbits at a _____________ from the nucleus defined by the energy state of the electron. | show 🗑
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| show | electromagnetic radiation
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| Light consists of electromagnetic waves. T/F | show 🗑
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| Light consists of streams of particles. T/F | show 🗑
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| The scientist who suggested that particles of matter in motion should have wave properties was ________________. | show 🗑
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| show | Schrodinger
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| show | Heisenberg
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| Each energy shell is made up of one or more __________ traveling with a particular frequency. | show 🗑
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| show | exact
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| The electron ___________ find an energy level where its oscillations form a standing wave. | show 🗑
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| The quantum numbers, taken together, give an ___________ picture of the configuration of each electron in the atom. | show 🗑
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| show | Planck
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| show | Thomson
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| show | Sommerfeld
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| show | True
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| show | False
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| Samuel Goudsmit and George Uhlenbeck were among the first scientists to accept the "matter wave" theory. T/F | show 🗑
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| The probabilities of an electron's position are best visualized with an electron cloud diagram. T/F | show 🗑
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| show | False
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| show | True
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| The first or principal quantum number has to do with the ______________. | show 🗑
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| The second or angular momentum quantum number has to do with the _________________. | show 🗑
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| The third or magnetic quantum number has to do with the ____________. | show 🗑
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| The fourth or spin quantum number has to do with the _______________. | show 🗑
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| Light emission is explained by the ___________ theory of light. | show 🗑
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| As _____________ is added to an atom, the electrons shift to a higher energy level. | show 🗑
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| The ____________ of an atom consists of protons and neutrons. | show 🗑
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| show | waves
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| show | blackbody
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| Thomson discovered the __________. | show 🗑
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| show | standing wave
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| show | electrons
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| An electron cloud diagram shows the ____________ of an electron's position. | show 🗑
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| The scientist who suggested that particles of matter in motion should have wave properties was ______________. | show 🗑
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| The scientist who suggested that a wave function could determine the probability of an electron occupying any particular energy shell was ____________. | show 🗑
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| show | Heisenberg
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| The electron must find an energy level where its oscillations form a(n) ____________. | show 🗑
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| The scientist who gave a quantum description and formula to describe the curve of the radiation in blackbodies was ____________. | show 🗑
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| show | Sommerfeld
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| The "raisin-pudding" model of the atom has electrons floating around in a(n) ___________ charged "sea". | show 🗑
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| show | electrons
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| According to classical physics, _________ are in a constant state of acceleration. | show 🗑
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| Different amounts of energy added to an atom produce ____________ of different frequencies. | show 🗑
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| show | electrons
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| show | Planck's constant
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| The principle that it is impossible to be sure of both the position and momentum of an electron at any one instant is called the ___________. | show 🗑
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| The quantum number associated with the energy shell level in which the electron is located at any one time is the ______________ quantum number. | show 🗑
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| show | energy
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| As the energy level of an atom shifts from an excited state back to a normal state, a(n) _____________ is released. | show 🗑
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| show | frequencies
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| The photoelectric effect is the phenomenon of _______________ being emitted when light strikes a metal surface. | show 🗑
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| ____________ called the dual nature of light complementarity. | show 🗑
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| show | Heisenberg
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| To get a clear picture of the characteristic light emissions from an element, use a _____________. | show 🗑
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| An element's absorption spectrum is ________________ its emission spectrum. | show 🗑
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| show | light
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| Light consists of ________________ waves. | show 🗑
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| show | photons
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
jhincks
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