As you’ve learned from Part B, hydrogen and helium gas never condense under conditions found in the solar nebula. The remaining three categories of material in the solar nebula are shown again here. Rank these materials from left to right based on the distance from the Sun at which they could condense into a solid in the solar nebula, from farthest to closest.
What will be an ideal response?
Ans: hydrogen compounds, rock, metals
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Visible light with wavelengths at the long-wavelength end (l= 700 nm) appears as which color?
a. red b. orange c. yellow d. green e. blue
Suppose an object is hanging from the end of a spring. Let the spring’s length when the object is hanging at rest be L. Now suppose we pull the object downward until the spring has been stretched a length of 2L. By what factor has the force that the spring is exerting on the object increased?
A. The spring force is the same in both cases.
B. 
times stronger
C. 2 times stronger
D. 4 times stronger
E. The answer depends on the spring’s relaxed length.
Which statement below is NOT an assumption made in the molecular model of an ideal gas?
a. The average separation between molecules is large compared with the dimensions of the molecules. b. The molecules undergo inelastic collisions with one another. c. The forces between molecules are short range. d. The molecules obey Newton's laws of motion. e. Any molecule can move in any direction with equal probability.
What is the probable source of the day-to-day variations in Jupiter's belts and zones?
A) convection of cool ammonia ice upward B) differential rotation and the underlying zonal flow C) oblateness due to low density D) thermonuclear fusion E) Jupiter's huge magnetosphere