8-2: Gravity

What is acceleration due to gravity on Earth?

• 98 m/s²

• 9.8 m/s²

• 0.98 m/s²

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There is a gravitational force between you and your desk. This gravitational force is very small because _____.

• the masses are tiny compared to Earth's mass

• it doesn't need to be large

• the distance between the objects is small

• it is a noncontact force

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Which of the following is most closely related to gravity?

• distance

• mass

• weight

• speed

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If the mass of one of two spheres increases, how does it affect the gravity between the two spheres?

• the gravity increases

• the gravity decreases

• the gravity fluctuates

• the gravity is not affected

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An object’s weight is _____ its mass

• equal to

• less than

• proportional to

• not related to

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This diagram shows three models that represent the gravitational force, F, between objects.

Which model is displaying the most gravitational force of attraction?

• Model 1

• Model 2

• Model 3

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What is the formula to calculate Weight from mass(m) and gravity (g) ?

• mass (m) / gravity (g) = weight

• mass (m) + gravity (g) = weight

• mass (m) - gravity (g) = weight

• mass (m) x gravity (g) = weight

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Newton's Universal Law of Gravitation claims that the attraction between objects with mass depend on what 2 things?

• volume and height

• velocity and height

• acceleration and mass

• mass and distance

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Which planet has the weakest gravitational pull?

• Earth

• Mercury

• Jupiter

• Venus

What is something that has a larger gravitational field than the Earth?

• my pencil

• a fly

• Mars

• the moon

• the Sun

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