Gravitational Forces Between Objects

The farther apart two objects are, the _______ the gravitational force.

• weaker

• stronger

• less stable

• more stable

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pulls objects toward the center of Earth.

• Mass

• Weight

• Gravity

• Resistance

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The Moon's gravitational force causes ______.

• ocean tides

• Earth's orbit

• dust clouds

• atmosphere

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The gravitational force between Earth and the Sun causes ______.

• ocean tides

• Earth's orbit

• Earth's atmosphere

• Moon's orbit

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______ wrote the universal law of gravity.

• Isaac Newton

• Galileo

• Henry Cavendish

• Thomas Edison

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Gravity causes all objects to accelerate toward the ______ at the same rate.

• Moon

• Sun

• Earth

• ocean

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can be measured using a scale and can change based on location.

• Space

• Force

• Weight

• Mass

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Newton's law of gravitation

• A measure of a force acting in the opposite direction.

• Every particle attracts every other particle with a force that is proportional to their masses and inversely proportional to the square of distance between them.

• The amount of matter that makes up an object. Mass does not change based on where you are.

• An increase in the rate or speed of something.

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Gravity is an attractive force between ANY two objects.

• False

• True

• Sometimes

• Always

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Isaac Newton

• An English mathematician and physicist who is known for formulating the theory of universal gravity. Newton’s three laws are commonly studied in middle and high school.

• An Italian astronomer, physicist, and engineer. He is sometimes known as the “Father of Observational Astronomy.”

• Every particle attracts every other particle with a force that is proportional to their masses and inversely proportional to the square of distance between them.

• A measurement that is taken using a scale and is determined by the pull of gravity. Weight can vary based on where you are and the pull of gravity in that area.

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