Law of Gravity

Which of the following statements describes how gravitational force is affected by mass or distance?

• As mass increases, the gravitational force between two objects increases.

• As mass increases, the gravitational force between two objects decreases.

• As distance increases, the gravitational force between two objects increases.

• As distance decreases, the gravitational force between two objects decreases.

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The objects shown in the following diagrams have different masses and are different distances apart. Which diagram shows the two objects that have the greatest force of gravity acting between them?

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What is the primary force that brings a roller coaster down over the first hill?

• gravity

• air resistance

• friction

• normal

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NGSS.MS-PS2-4

Which statement correctly explains how gravitational force is related to distance?

• As objects move away from each other, the gravitational force increases.

• As objects move away from each other, the gravitational force decreases.

• As distance remains the same between objects, the gravitational force decreases.

• As distance decreases between objects, the gravitational force decreases.

What does the Law of Universal Gravitation state?

• Objects in space repel each other.

• Every object in the universe attracts every other object, affected by mass and distance.

• Gravity only affects objects on Earth.

• Only planets can attract each other.

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What is the law of universal gravitation?

• The more mass an object has, the more gravitational attraction it has. The greater the distance between two objects, the less their gravitational attraction.

• Gravity pulled together a cloud of interstellar gas and dust (called a nebula). As the nebula spun, gravity condensed the gases into the center to form the Sun. Eventually, the gravity of smaller pieces of matter drew objects to them to form the planets.

• Gravity pulled together a cloud of interstellar gas and dust (called a nebula). As the nebula spun, gravity condensed the gases into the center to form the Sun. Eventually, the gravity of smaller pieces of matter drew objects to them to form the planets.

• It states that any two masses attract each other more when they are more massive (greater mass) and closer together (less distance).

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The law of universal gravitation is credited to whom? 

• Einstein 

• Galileo

• Darwin

• Newton 

According to the law of universal gravitation, any two objects are attracted to each other. The strength of the gravitational force depends on the masses of the objects and their distance from each other. Many stars have planets around them. If there were no gravity attracting a planet to its star, the planet's motion would carry it away from the star. However, when this motion is balanced by the gravitational attraction to the star, the planet orbits the star. Two solar systems each have a planet the same distance from the star. The planets have the same mass, but Planet A orbits a more massive star than Planet B. Which of the following statements is true about the planets?

• Planet A orbits its star faster than Planet B.

• Planet A has a longer year than Planet B.

• Planet B is more attracted to its star than Planet A.

• Planet B will keep orbiting its star longer than Planet A

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NGSS.MS-PS2-4

Which of the following exists around every object that has mass?

• magnetic poles

• electric charges

• a magnetic field

• a gravitational field

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The data above were collected by scientists testing the force of gravity between two objects. What does the data in the table support?

• The force of gravity only depends on the object with less mass.

• The force of gravity only depends on the distance between the objects interacting.

• The force of gravity depends on the masses of the objects interacting.

• The force of gravity only depends on the object with more mass.

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