Gravity in Our Solar System

Which statement best describes two objects experiencing a gravitational interaction?

• The objects can only attract each other and the force depends on their masses.

• The objects can attract and repel each other and the force does not depend on their masses.

• The objects can attract and repel each other and the force depends on their masses.

• The objects can only repel each other and the force does not depend on their masses.

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NGSS.MS-PS2-4

Which of the following exerts gravity?

• only planets, moons, and stars

• any object with mass

• only objects on Earth

• only the Earth

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NGSS.MS-PS2-4

Which of the following best describes a gravitational force?

• It can attract or repel two objects.

• It only repels two objects.

• It does not require objects to have mass.

• It only attracts two objects.

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NGSS.MS-PS2-4

Scientists and engineers are testing three different satellites orbiting Earth. The scientists are able to use sensors to determine the gravitational force experienced by each satellite. Some of the data from each of the orbiting satellites is shown in the table above. Which statement best summarizes the information given?

• The gravitational force on the satellite depends only on the distance from Earth at which it is traveling.

• The satellite with the least amount of mass is able to exert greater gravitational force on Earth than the others.

• The gravitational force exerted by Earth changes the mass of each of the satellites.

• The gravitational force exerted by Earth on the satellite depends on the satellite's mass.

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NGSS.MS-PS2-4

NGSS.MS-ESS1-2

NGSS.MS-PS2-2

All objects anywhere on or near the Earth are

• pulled toward Earth by the force of gravity.

• held in place by several forces pushing and pulling on them.

• pushed away from Earth by the force of repulsion.

• spun in a counterclockwise direction by magnetic forces.

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NGSS.MS-PS2-4

Astronauts on the Moon can jump higher than if they were on Earth. This is because

• the astronauts are less massive on the Moon.

• there is no friction on the Moon.

• Newton's laws of motion do not apply to the Moon.

• the Moon is less massive than the Earth

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NGSS.MS-PS2-4

Which force holds all of the planets in a constant orbit around the Sun, creating the solar system in which we live?

• Inertia

• Motion

• Weight

• Gravity

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NGSS.MS-PS2-4

NGSS.MS-ESS1-2

In our solar system, what has the greatest gravitational force, due to it's size?

• Saturn

• Jupiter

• Sun

• Earth

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NGSS.MS-PS2-4

NGSS.MS-ESS1-2

What is the main concept illustrated in the diagram?

• Gravity is constant and stays the same no matter what.

• Gravity changes with distance.

• Gravity is stronger when objects are further away.

• Gravity is weaker with more mass.

Why do planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull.

• The Sun’s chemical composition makes it attract planets.

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2