Unit 2 Lesson 5 TCI Gravity and the Solar System

What is gravity?

• a star and all the objects that revolve around it

• a picture or shape created by a group of stars

• a force that pulls objects toward its center

• a force that makes objects drift apart

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

10.  Our ___________________ is made up of the planets and their moons all in orbit around the Sun.  

• a. galaxy

• b. milky way

• c. solar system

• d. universe

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NGSS.MS-ESS1-2

NGSS.MS-ESS1-1

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When you increase the size of the Earth and the Sun what happens to the gravity?

• the gravity of both Earth & Sun increases

• the gravity of the Earth & Sun decreases

• no one is sure because you cannot increase the size of the Earth & Sun

• all of the above

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What two factors affects gravitational force?

• nothing affects gravity

• size and shape

• size and distance

• shape and distance

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NGSS.MS-ESS1-2

Objects (or planets) with MORE mass have __________ gravitational pull.

• MORE

• LESS

• EQUAL

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NGSS.MS-PS2-4

Objects (or planets) with LESS mass have __________ gravitational pull.

• MORE

• LESS

• EQUAL

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NGSS.MS-PS2-4

How does the Sun's gravity compare to the Earth's gravity?

• a. The Sun's gravity is stronger

• b. The Earth's gravity is stronger

• c. Their gravitational pull is the same

• d. Scientists aren't able to measure the Sun's gravity

A __________ is a chunk of ice & dust that has a bright head & a long narrow tail.

• asteroid
• planet
• meteoroid
• comet

How long does it take Earth to complete one revolution around the Sun?

• 24 hours
• one week
• one month
• one year

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NGSS.MS-ESS1-1

Which is the largest object in our solar system?

• Sun
• Jupiter
• Earth
• Pluto

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