Gravity and Orbiting Review

Which celestial objects are shown in the diagram at the bottom of the page?

• Sun, Earth, and Moon

• Mars, Jupiter, and Saturn

• Earth, Venus, and Mercury

• Sun, Mars, and Pluto

Tags

NGSS.MS-ESS1-1

What is the definition of force?

• Any influence, such as a push or a pull, that causes an object to move or change its speed, direction, or shape.

• A measure of the amount of matter that makes up an object.

• The distance an object travels in a certain amount of time.

• The energy stored in an object due to its position.

Tags

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Which of the following best describes mass?

• The speed at which an object moves.

• The amount of space an object takes up.

• A measure of the amount of matter that makes up an object.

• The force applied to an object.

What is gravity?

• An attraction force between all masses in the universe

• A force that only affects planets

• A type of energy

• A property of liquids only

Tags

NGSS.MS-PS2-4

Gravity is a property of which of the following?

• Only planets

• Only living things

• All matter

• Only water

Tags

NGSS.MS-PS2-4

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Which of the following best explains why we feel gravity from Earth but not from a pencil?

• Earth is closer to us than a pencil

• Earth has a much larger mass than a pencil

• Pencils do not have gravity

• Gravity only works on round objects

Tags

NGSS.MS-PS2-4

What is gravity?

• The force that attracts objects toward the center of the Earth.

• The force that pushes objects away from the Earth.

• The energy that makes objects float in the air.

• The process of objects changing shape.

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NGSS.5-PS2-1

Why does an apple fall from a tree to the ground?

• Because the wind blows it down.

• Because gravity pulls it toward the Earth.

• Because the tree pushes it off.

• Because it is too heavy to stay on the tree.

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Why does Earth's gravity overcome all other gravitational forces of objects on its surface?

• Because Earth's mass is very small.

• Because Earth's mass is so large.

• Because objects on Earth have no mass.

• Because gravity does not affect objects on Earth.

Tags

NGSS.MS-PS2-4

What happens to the gravitational force between two objects as the distance between them increases?

• The gravitational force becomes stronger.

• The gravitational force becomes weaker.

• The gravitational force stays the same.

• The gravitational force disappears completely.

Tags

NGSS.HS-PS2-4