A. conservation of moment of inertia. B. conservation of angular momentum. C. to
ID: 1662486 • Letter: A
Question
A. conservation of moment of inertia.
B. conservation of angular momentum.
C. torque = moment of inertia times angular acceleration.
D. for every action there is an equal and oppositereaction.
2.What plays the role of a "spring" to cause the waveoscillations in sound?
A. gravity
B. density
C. pressure
D. no forces are involved.
3. According to Einstein's prediction, which of thefollowing happens to an observed time interval (or ruler length?)between two events occurring in an inertial frame of reference asthe frame's velocity with respect to the observerincreases?
A. The interval increases.
B. The interval decreases.
C. The interval remains constant.
D. The there is no prediction.
4. Describe how quantum mechanics explains the"photoelectric effect."
A. The more energetic the photons, the more electrons areemitted.
B. For every photon in the beam, one electron is emitted.
C. Higher frequency photons strike the metal more often.
D. Photons with longer wavelength influence more electrons.
5.
Explanation / Answer
A. conservation of moment of inertia.
B. conservation of angularmomentum.
C. torque = moment of inertia times angular acceleration.
D. for every action there is an equal and oppositereaction.
2.What plays the role of a "spring" to cause the waveoscillations in sound?
A. gravity
B. density
C. pressure
D. no forces are involved.
3. According to Einstein's prediction, which of thefollowing happens to an observed time interval (or ruler length?)between two events occurring in an inertial frame of reference asthe frame's velocity with respect to the observerincreases?
A. The intervalincreases.
B. The interval decreases.
C. The interval remains constant.
D. The there is no prediction.
4. Describe how quantum mechanics explains the"photoelectric effect."
A. The more energetic the photons, the more electrons areemitted.
B. For every photon in the beam, oneelectron is emitted.
C. Higher frequency photons strike the metal more often.
D. Photons with longer wavelength influence more electrons.
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