Astronomy Part 2 - Segment 1 Question Preview (ID: 1847)

This Content Relates To The Astronomy Part 2 Unit.

Which of these best describes the composition of a nebula such as the Crab Nebula?
a) cloud of gas and dust
b) ice crystals
c) large asteroids
d) planets and moons

Which of the following planets has the fastest orbital velocity?
a) Jupiter
b) Mars
c) Pluto
d) Mercury

Which sequence correctly lists the relative sizes from smallest to largest?
a) Milky Way Galaxy, Solar System, the Universe
b) the Universe, Solar System, Milky Way Galaxy
c) Solar System, Milky Way Galaxy, the Universe
d) Solar System, the Universe, Milky Way Galaxy

Photography of the surface of Mars reveal the presence of shifting sand dunes.
a) This indicates the presence of winds on Mars.
b) This indicates the presence of precipitation on Mars.
c) This indicates the presence of plate tectonics on Mars.
d) This indicates the presence of magnetic pole reversals on Mars.

What separates the inner planets from the outer planets?
a) the Sun
b) the comets
c) the Asteroid Belt
d) the Oort Cloud

Very old Lunar craters still exist; however, those on Earth have been erased. Why?
a) The Moon only experiences gentle rain.
b) There are no erosional forces on the Moon.
c) There is only erosion by wind on the Moon.
d) Earth's erosional forces are different.

What causes the seasons on Earth?
a) the 23.5 degree tilt of Earth's axis
b) Earth's circular orbit
c) differences in the surface features on Earth
d) Earth's Moon

Why does the same side of the Moon always face Earth?
a) the other side is made of cheese
b) its period of rotation and period of revolution are the same length
c) it goes through two rotations for each revolution arount Earth
d) the gravitational pull of the Earth varies as the Moon orbits Earth

The gravitational pull of the Moon is the main cause of the
a) daily tides on Earth.
b) winds on Earth.
c) lunar eclipse.
d) Coriolis Effect.

Which statement provides evidence that Earth revolves around the Sun?
a) The Coriolis Effect causes winds to curve differently.
b) The stars appear to circle the Earth during the night.
c) Different star constellations are visible at different seasons.
d) The Sun follows an apparent arc across the sky.

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