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# College Physics Questions

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College Forces and Motion
Aristotle incorrectly taught that Earth and water fall with a constant velocity to reach their
1. lowest point.
2. natural place.
3. least resistant path.
4. terminal velocity.
College Quantum Physics and the Atom
Which of the following d-orbitals has the structure shown? (Ignore the label shown in the diagram.)
1. $d_{xz}$
2. $d_{x^2 - y^2}$
3. $d_{z^2}$
4. $d_{xy}$
College Quantum Physics and the Atom
Which combination of n, l, and $m_l$ values could represent the orbital shown?
1. n=2, l=0, $m_l$=0
2. n=2, l=1, $m_l=-1$
3. n=2, l=1, $m_l=0$
4. n=2, l=1, $m_l=1$
College Quantum Physics and the Atom
Which of the following combinations of n, l, and $m_l$ could lead to the orbital shown?
1. $n=2, l=1, m_l=-1, 0, 1$
2. $n=3, l=0, m_l=0$
3. $n=4, l=2, m_l=-2$
4. None of the above
College Quantum Physics and the Atom
Which combination of n, l, and $m_l$ values could represent the orbital shown?
1. n=3, l=2, and $m_l=-2$
2. n=3, l=0, and l=0
3. n=4, l=3, and $m_l=3$
4. n=4, l=1, and $m_l=-1$
College Light and Optics
What is a fixed quantity of light energy?
1. Photon
2. Light reaction
3. Photoautotroph
4. Autotrophs
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 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 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 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 Forces and Motion
A football is tossed up into the air in the +y direction. Which of the following is true at the point where the football reaches the ground?
1. the velocity of the ball is negative and the acceleration is negative
2. the velocity of the ball is negative and the acceleration is positive
3. the velocity of the ball is positive and the acceleration is negative
4. the velocity of the ball is positive and the acceleration is positive
5. the velocity of the ball is zero and the acceleration is negative
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 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
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