The process whereby heat flows in the absence of any medium is referred to as
A) conduction.
B) convection.
C) radiation.
D) inversion.
E) evaporation.
C
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In glass, plastic strain is due to the _____________and reformation of atomic bonds.
Fill in the blank(s) with the appropriate word(s).
According to the photoelectric effect in order to release electrons from a solid, the light incident upon it must:
A) have a high intensity. B) have a low intensity. C) have a long wavelength. D) have a short wavelength. E) None of the above.
One observation that suggests that the Earth has a dense central core is that
A) the Earth has plate tectonics B) surface rocks have the same density as the overall density of the planet C) surface rocks have a lower density than overall density of the planet D) surface rocks have a higher density than the overall density of the planet
The pupil of the eye increases in size under which condition?
a. object viewed is well illuminated b. eye is focused on a nearby object c. object viewed is dimly illuminated d. eye is focused on a distant object