Physics and Astronomy Labs/Instructor

group 1 astronomy

1

Which portion of the HR diagram has stars with the greatest luminosity?

	top side
	upper right corner
	lower left corner
	left side
	upper left corner

2

What is the solar system?

	Stars
	Planets and the object that orbit the planets
	Sun and the objects that orbit the Sun
	None of the above

3

What is the fourth planet in the solar system?

	Earth
	Mars
	Jupiter
	Mercury

4

How many Moons could be stacked from the horizon to the zenith (the point directly overhead)?

	29.5
	45
	90
	31.5
	180

5

Earth is a gas planet.

	True
	False

6

How many planets are in our Solar system?

	3
	5
	8
	9

7

What planet was known as Planet "X"?

	Earth
	Jupiter
	Pluto
	Neptune

8

Which is closest to the number of Earth days equal Pluto's rotational period?

	6,000
	600
	6
	60

astro 2

1

How many planets are considered to be inner planets?

	4
	1
	5
	7

2

Why are the outer planets solid instead of gas? NEEDS WORK TOO EASY

	they are closer to the Sun
	cooler temperature because of farther distance from Sun
	they are smaller
	they are colorful

3

When can Mercury not appear in Earth's Sky?

	The morning
	The afternoon
	Middle of the night
	The evening

4

Mercury's core consists of what element that's more abundant than in any other planet?

	Iron
	Magnesium
	Copper
	Sodium