Question 1 (1 point)Which property of a star can be determined from its color?

mass

stellar distance

surface temperature

volume

Question 2 (1 point)Which main sequence stars are the least massive?

blue

orange

red

yellow

Question 3 (1 point)The sun belongs to which class of stars?

black hole

main sequence

red giant

white dwarf

Question 4 (1 point)Which terrestrial planet has a surface landscape similar to that of the older areas of the Earth’s moon?

Mercury

Neptune

Uranus

Venus

Question 5 (1 point)What can astronomers determine based on the observed red shifts in the spectral lines of distant galaxies?

Earth is in the center of the universe.

The universe is contracting.

The universe is expanding.

The universe is in a steady state.

Question 6 (1 point)Which of these discoveries led to the modern view of the solar system regarding the orbits of the planets?

circles

ellipses

hyperbolas

parabolas

Question 7 (1 point)Which features are found on both Mars and Earth?

active volcanoes

erosional features related to flowing water

impact craters preserved from early in the planets’ histories

oceans

Question 8 (1 point)When a medium-sized, main sequence star, like our sun, has exhausted the fuel in its inner region, it becomes which type of star?

black dwarf

black hole

brown dwarf

red giant

Question 9 (1 point)What is used to determine the distances to the stars?

emission nebulae

fluorescence

stellar mass

stellar parallax

Question 10 (1 point)The apparent backward “drift” of the planets compared to the background stars is known by what term?

occultation

precession

Ptolemaic motion

retrograde motion

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