What are the two primary methods by which planets have been found around other stars in our galaxy?
I) Direct images in visible and infrared light
II) Indirectly by detecting the motion of the host star
III) Indirectly by measuring the drop in brightness of the host star when the planet crosses our line of sight
A) I and II B) II and III C) I and III
B
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Color perception deficiency occurs
A. Astigmatism |
B. Eye Dominance |
C. Focus |
D. Blind Spot |
E. Color Blindness |
F. Afterimages |
Based on what we see in panoramic images, why do you think Moon is likely NOT to have an atmosphere?
A. Only in the absence of an atmosphere would the moon be able to reflect light from the Sun, thereby making it visible from Earth. B. If the Moon had an atmosphere, the light from the Sun would heat the atoms in the atmosphere and the atmosphere would start glowing. C. If the Moon had an atmosphere, then humans wouldn't have been able to land on its surface. D. If the Moon had an atmosphere, then Earth couldn't have an atmosphere since the two atmospheres would interact with each other. E. If the Moon had an atmosphere, it would scatter sunlight in all directions and the lunar sky would look bright.
The quantity that most relates to the size of an object is
A) mass. B) weight. C) volume. D) none of the above
If the position versus time graph of an object is a vertical line, the object is
A) moving with constant non-zero speed. B) moving with constant non-zero acceleration. C) at rest. D) moving with infinite speed. E) none of the above