The pupil of the eye increases in size under which condition?
a. eye is focused on a distant object
b. eye is focused on a nearby object
c. object viewed is dimly illuminated
d. object viewed is well illuminated
c
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Describe the orbits of the Kuiper Belt bodies
What will be an ideal response?
What is thought to have caused the craters on Venus?
A) Most are volcanic in origin; some are due to meteoritic impacts. B) As in the case of Mercury, all the craters are due to meteorite impacts. C) Because meteorites cannot survive passing through the atmosphere of Venus, all craters must be volcanic. D) Venus has very few craters and their origin is not known. E) Venus' craters originated during differentiation.
A nucleon is
A) a neutron or a proton. B) a nucleus made of neutrons only. C) a neutron or proton when in the nucleus. D) a neutron, proton, or positron when in the nucleus. E) a neutron or positron when in the nucleus.
Force on a Moving Charge: A charged particle that is moving in a static uniform magnetic field
A. will always experience a magnetic force, regardless of its direction of motion. B. may experience a magnetic force which will cause its speed to change. C. may experience a magnetic force, but its speed will not change. D. may experience a magnetic force, but its direction of motion will not change. E. None of these statements are true.