What is the solar wind?
a. strong radiation that comes from the Sun
b. similar to winds on Earth, but faster and stronger
c. similar to winds on Earth, but less dense and weaker
d. atoms and particles ejected from the Sun at high speed
e. strong winds on the surface on the sun due to large temperature differences
Ans: d. atoms and particles ejected from the Sun at high speed
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What feature(s) of this spectrum indicate(s) that Mars appears red in color?
A) the wavelength of the peak labeled 3 B) the wavelength of the peak labeled 6 C) the fact that the intensity of region 4 is higher than that of region 2 D) the fact that the peak labeled 3 is higher than the peak labeled 6
The constant K in Kepler's Third Law is the same for all the planets in our solar system, but is different for planetary systems orbiting other stars
Indicate whether the statement is true or false
A Hooke's law spring is compressed a distance d and is used to launch a particle of mass m vertically to a height h above its starting position. Under double the compression, the spring is now used to launch a particle of mass 2 m. How high does the second mass rise above its starting position?
a. h c. 3h b. 2h d. 4h
If a star appears to move back and forth relative to other stars over a six-month period, this motion is due to the star's:
A) transverse motion. B) radial motion. C) parallax shift. D) Doppler shift. E) true space motion.