Gravity and Newton's Law of Universal Gravitation Quiz Review

What is gravity?

• A force that attracts objects toward each other

• A type of energy that objects emit

• The speed at which objects move

• The color of an object

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What are the three parts to Newton’s Law of Universal Gravitation?

• Mass, distance, and force

• Speed, direction, and time

• Energy, power, and work

• Volume, density, and area

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If a body in space becomes more massive, what will happen to the gravitational pull it exerts on other objects?

• It will increase

• It will decrease

• It will stay the same

• It will disappear

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The force of gravity is measured using what units?

• Newtons

• Joules

• Meters

• Volts

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What is mass?

• The amount of matter in an object

• The force of gravity on an object

• The speed of an object

• The color of an object

What is weight?

• The force of gravity on an object

• The amount of matter in an object

• The size of an object

• The temperature of an object

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How is mass different from weight?

• Mass is the amount of matter; weight is the force of gravity on that matter

• Mass is the force of gravity; weight is the amount of matter

• Mass is measured in newtons; weight is measured in kilograms

• Mass changes with location; weight stays the same everywhere

Which has a higher gravitational pull: Earth or the moon? Why?

• Earth, because it has more mass

• The moon, because it is closer to the sun

• Earth, because it is farther from the sun

• The moon, because it is smaller

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What formula is used to find weight?

• Weight = mass × acceleration due to gravity

• Weight = mass ÷ volume

• Weight = force × distance

• Weight = energy ÷ time

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What is the acceleration due to gravity on Earth?

• 9.8 m/s²

• 5.0 m/s²

• 15.0 m/s²

• 1.6 m/s²