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Planetary Motion Yes/No

Yes or No

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About this activity

Select "yes" or "no" for the statements.

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Planetary Motion Yes/No
 

Planetary Motion Yes/NoOnline version

Select "yes" or "no" for the statements.

by Jenna Riddle
1

Without the force of gravity, planets would continue in a straight line into space.

2

Gravity causes the planets to stop moving.

3

Kepler's First Law states planets orbit the Sun in an elliptical orbit.

4

The force of gravity keeps planets in orbit around the Sun.

5

Inertia helps a moving planet continue moving unless something intereferes with its path.

6

Planets always move at the same speed around the sun.

7

Planets orbit the Sun in perfect circles.

8

More massive objects have a smaller gravitational force or pull.

9

The word "elliptical" also means "oval-shaped."

10

The Sun orbits the planets as they move.

11

Without inertia, planets would most likely be sucked into the Sun.

12

As objects move farther away from one another, their gravitational pull decreases.

13

As objects move closer to one another, their gravitational pull gets stronger.

14

The farther a planet is from the Sun, the longer it takes to orbit the Sun.

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