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# College Physics Questions

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College Quantum Physics and the Atom
Which range of wavelength is involved in the visible spectrum?
1. $10^-12 m$
2. $4 xx 10^-7 "m to 7" xx 10^-7 m$
3. $10^-2 m$
4. $10^4 m$
College Forces and Motion
If a particle moves in a plane so that its position is described by the functions
$x=Acosomegat$ and $y=Asinomegat$, the particle is
1. moving with constant speed along a circle.
2. moving with varying speed along a circle.
3. moving with constant acceleration along a straight line.
4. moving along a parabola.
5. oscillating back and forth along a straight line.
College Forces and Motion
The sum of all the external forces on a system of particles is zero. Which of the
following must be true of the system?
1. The total mechanical energy is constant.
2. The total potential energy is constant.
3. The total kinetic energy is constant.
4. The total linear momentum is constant.
5. It is in static equilibrium.
College Thermodynamics
Which of the following can be used to calculate entropy changes in reactions?
1. $∆Gº_{reaction}=∑n_{r}∆Gº_f{"reactants"}-∑n_{p}∆Gº_f{"products"}$
2. $∆Gº_{reaction}=∑n_{r}∆Gº_f{"reactants"}+∑n_{p}∆Gº_f{"products"}$
3. $∆Gº_{reaction}=∑n_{p}∆Gº_f{"products"}-∑n_{r}∆Gº_f{"reactants"}$
4. None of the above
College Quantum Physics and the Atom
Which of the following describes electron spin quantum number?
1. An orbital holds two electrons, and they have identical spin
2. An orbital holds three electrons, and they have identical spins
3. An orbital holds two electrons, and they have opposite spins
4. An orbital holds three electrons, and they have opposite spins
College Matter
Metals, minerals, water and air are examples of:
1. natural alloys
2. inorganic substances
3. compound gases
4. proteins
College Thermodynamics
Which of the following correctly represents when the equilibrium point occurs?
1. When the value of ∆Gº=1, only
2. When the value of ∆Gº<0, only
3. When the value of ∆Gº>0, only
4. At the lowest value of free energy available to the system
College Quantum Physics and the Atom
Which of the following correctly describes the changes in frequency and energy, in moving from radio waves to gamma rays?
1. Energy and frequency both decrease
2. Energy and frequency both increase
3. Energy increases, and frequency decreases
4. Energy decreases, and frequency increases
College Quantum Physics and the Atom
College Thermodynamics
College Thermodynamics
Which of the following represents ∆Gº, in terms of temperature?
1. $∆Gº=∆Hº+T∆Sº$
2. $∆Gº=∆Hº-T∆Sº$
3. $∆Gº=∆Hº-T/{∆Sº}$
4. $∆Gº=-∆Hº-T∆Sº$
College Quantum Physics and the Atom
How is energy transferred?
1. in packets of energy called protons
2. in the form of subatomic particles
3. in the form of photons and subatomic particles
4. in the form of photons
College Quantum Physics and the Atom
Which of the following represents stability in bonds on a plot of potential energy vs. distance?
1. The highest amount of energy
2. The greatest amount of repulsion
3. The lowest amount of energy
4. Both (b) and (c)
College Thermodynamics
Which of the following correctly describes the Second Law of Thermodynamics?
1. The universe is constantly decreasing in disorder
2. The entropy in the universe is equal to zero
3. The universe is constantly increasing in disorder
4. None of the above
College Quantum Physics and the Atom
Which of the following can be inferred from the results of photoelectronic spectroscopy?
1. It allows the structure of protons to be observed
2. It allows the electronic structure of atoms to be determined
3. It allows the structure of neutrons to be observed
4. None of the above
College Quantum Physics and the Atom
Assuming that two species have the same electron arrangement, which of the following will lead to a higher ionization energy for an electron?
1. A higher nuclear charge
2. A lower nuclear charge
3. A lower nuclear charge and greater electron-electron repulsion
4. None of the above
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