[Geoscience] Unit 1 P4

What does gravity depend on?

• Mass and weight

• Mass and gravity

• Mass and distance

Why is Earth's gravity far stronger than our gravity?

• Earth's mass is far much greater so Earth's gravity is stronger

• Since Earth is much closer to the Sun, the gravity is stronger

• Our mass is far much lower so our gravity is stronger

What happens to the force of gravity as the distance between two objects increase (objects get farther away)?

• Force of gravity increases

• Force of gravity decreases

• Force of gravity remains the same

The shape of the orbit of planets around the Sun is a(an):

• Circular orbit

• Equatorial Orbit

• Spherical Orbit

• Elliptical Orbit

What happens to the orbital speed of a planet as it gets closer to a star?

• Increases

• Decreases

• Remains constant

Which theory of the Moon's formation is widely accepted?

• Earth’s gravity captured the moon

• A Mars-sized asteroid collided with the Earth

• The Moon broke off of the Pacific Ocean

How long does it take the Moon to rotate and revolve around the Earth?

• About 2 months

• About 24 hours

• About 28 days

• About 1-year

T/F: The Moon's surface is unchanged due to have a thin atmosphere

• True

• False

T/F: We are able to see both side of the Moon because of its rotation and revolution being the same

• True

• False

What causes lunar phases?

• Earth's orbit

• Moon's orbit

• Moon's tilt

• Earth's tilt