Physics is NOT:
a. the study of the material world.
b. the search for patterns in the behavior of material objects.
c. the search for rules that describe the behavior of objects in the Universe.
d. a discipline that covers the entire span of space and time.
e. a fixed and unchanging body of knowledge.
e
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The sub-atomic particle known as the "neutrino" was originally hypothesized
A) because it was thought that radiant energy is actually a form of energy. B) in order to preserve conservation of electric charge in a certain type of nuclear process. C) in order to preserve Newton's laws in a certain type of nuclear process. D) because it was thought that thermal energy (or heat) is actually a form of energy. E) in order to preserve the law of conservation of energy in a certain type of nuclear process.
A neutral atom must have ____
a. an equal number of protons and neutrons b. an equal number of protons and electrons c. an equal number of neutrons and electrons d. less electrons than protons e. more electrons than neutrons
Imagine a small magnet with its north pole vertically upward passing near the south pole of an external magnet that is above the small magnet. In what direction does the net force acting on the magnet point?
A. Upward. B. Downward. C. There is zero net force. D. None of the above (explain).
During the time that the acceleration of a particle is constant, its velocity-vs.-time curve is
A) a straight line. B) a parabola opening downward. C) a parabola opening upward. D) a parabola opening toward the left. E) a parabola opening toward the right.