Gravity and Motion

The force that causes objects with mass to attract to one another:

• Weight

• Mass

• Gravity

• Magnetism

Tags

NGSS.MS-PS2-4

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-ESS1-2

NGSS.MS-PS2-4

Gravity can be defined as the –

• force of attraction between two or more masses.

• friction created when two objects are in contact.

• energy given off by stars due to nuclear reactions.

• path an object follows as it moves through space.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

As distance between two objects increases, the pull of gravity 

• Increase

• decrease

• stays the same

• has not effect

Tags

NGSS.HS-PS2-4

What would happen to Earth without the sun's gravity?

• Earth would DRIFT INTO SPACE

• Earth would ORBIT the sun

• Earth would be SMALLER

• Earth would get CLOSER TO OTHER PLANETS

  Show answersExplanationPreviousNext

Tags

NGSS.MS-ESS1-2

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• weight and mass.

• distance and weight.

• mass and matter.

• mass and distance.

Tags

NGSS.HS-PS2-4

Where would you have more mass, on Earth or on the Moon?

• Earth

• Moon

• It is the same, mass doesn´t change

• In both planets

The path a planet follows as it moves around the sun

• Orbit/Revolution
• Rotation
• Axis
• Revolution

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The spinning motion of a planet on its axis is its

• Rotation
• Revolution
• orbital period
• orbital radius

Tags

NGSS.3-PS2-1

Which planet has the shortest orbital period?

• Mercury
• Earth
• Mars
• Neptune