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The Atom And The Quantum
Test Description: Chapter 38 in conceptual physics book- energy and quanta
Instructions: Answer all questions to get your test result.
1) The photoelectric effect is evidence for light's
A
both wave and particle nature
B
particle nature
C
wave nature
D
light is just energy period
2) The energy of a photon is directly proportional to its
A
frequency
B
wavelength
C
period
D
amplitude
3) The wavelength of a particle is related to the particles's
A
potential energy
B
charges
C
size
D
momentum
4) Diffraction effects cannot be measured for
A
baseballs
B
low-frequency light
C
water waves
D
electrons
5) Electron wavelengths are generally
A
shorter than light wavelengths
B
longer than light wavelengths
C
shorter than light wavelengths
D
the same as light wavelengths
6) When an atomic electron goes from a hgih emergy ste to a low energy state, it
A
absorbs a photon
B
emits an electron
C
neither absorbs or emits a photon
D
emits a photon
7) The energy states available to an electron are
A
intermitent
B
vary
C
quantized
D
continuous
8) The discrete orbits of electrons are best understood by considering the electron\'s
A
charge
B
quantum properties
C
wave properties
D
particle properties
9) Compared to the innermost electrons of an uranium atom, the innermost electron of a hydrogen atom is
A
farther from the nucleus
B
closer to the nucleus
C
varies within the atom
D
the same distance from the nucleus
10) Helium is four times as masive as hydrogen. Compared to the size of hydrogen, helium is
A
about 4 times larger
B
about the same size
C
smaller
D
about 2 times larger
*select an answer for all questions
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