The warmth you feel when you put your hand in a sunbeam is due to which part of the electromagnetic spectrum?
A. X-ray
B. ultraviolet waves
C. gamma ray
D. radio waves
E. infrared light waves
Answer: E
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A plot of the continuous spectra of five different stars is shown in Figure 6-1. Based on these spectra, which of the stars is the hottest?
What kind of planet is most easily detected using the transit method?
A) large planets in edge-on orbits around small stars B) large planets in face-on orbits around small stars C) small planets in edge-on orbits around big stars D) small planets in face-on orbits around big stars E) Earth-like planets in any orbit
Rank them from fastest to slowest in how quickly each warms up: (a) steel, 450 J/kg??C ; (b) aluminum, 910 J/kg??C ; (c) copper, 390 J/kg??C .Rank from fastest to slowest. To rank items as equivalent, overlap them.
A block of wood is floating in water. If the temperature of the water increases, what happens to the fraction of the block above water?
a. It increases. c. It stays the same. b. It decreases. d. It can be any of the above answers depending on the initial and final temperatures.