Green cheese is unripe cheese, which has a yellowish color. Many hundreds of years ago, someone said that the Moon was made of green cheese. Was this model falsifiable in its time? Is it falsifiable now? Explain
What will be an ideal response?
Just because something is the same color as something else does not make it
identical. This was an analogy, and while analogies are often productive, at the time the
model certainly was not falsifiable, because there was no way to reach the Moon's surface
and see what it was made of.
There have been trips to the Moon, and we now know a lot about the composition of lunar
soils. Because we can refer to these lunar soils (or conceivably return to the Moon), the
model is capable of being shown to be false.
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If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is
A) .2". B) .5". C) .02". D) .002". E) .005".
The energy attributed to an object by virtue of its motion is known as
A) potential energy. B) kinetic energy. C) radiative energy. D) mass-energy.
Which of the following worlds has the most substantial atmosphere?
A) the Moon B) Earth C) Venus D) Mercury E) Mars
Which of the following is not a wave?
A) light B) water flowing down a river C) ripples on the surface of a pond D) All of these are waves. E) None of these are waves.