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Gravity and Scale Review 1

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

All the inner planets

a)

have at least one moon

b)

Are rocky

c)

are very large

d)

have thick atmospheres

2.

All the outer planets are made of mostly..

a)

water & ice.

b)

Metal and rock

c)

Gas

d)

A rocky surface

3.

Which planet is the largest in our solar system?

a)

Jupiter

b)

Neptune

c)

Earth

d)

Mercury

4.

Which of the following is a complete list of the inner planets?

a)

Venus, Earth, Mars, and Jupiter

b)

Jupiter, Saturn, Uranus, and Neptune

c)

Mercury, Venus, Earth, and Mars

d)

Mercury, Venus, Earth, and Jupiter

5.

As the size of a planet increases, gravity

a)

increases

b)

decreases

c)

stays the same

6.

As the size of a planet decreases, gravity

a)

increases

b)

decreases

c)

stays the same

7.

Mercury is smaller than Earth so it has ____ gravity than Earth

a)

More

b)

Less

c)

The same

8.

___ holds all the planets in orbit around the sun.

a)

Gravity

b)

String

c)

Bill Nye

d)

Duct tape

9.

What keeps the moon in orbit around the earth?

a)

Magnets

b)

Gravity

c)

Friendship

d)

Electricity

10.

Which object has the most gravity?

a)

Earth

b)

Moon

c)

Jupiter

d)

Sun

11.

What is the center of our solar system?

a)

Sun

b)

Jupiter

c)

Earth

d)

Saturn

12.

Inner planets has __ of the suns gravity?

a)

More

b)

Less

c)

The same

13.

If an object is close to the sun and has more of the sun's gravitational pull it will orbit.....

a)

Gravity has nothing to do with speed

b)

Slower

c)

Faster

14.

Outer planets have ____ of the sun's gravitational pull

a)

More

b)

Less

c)

The same as inner planets

15.

When an object is further from the sun and has less of the sun's gravitational pull its orbit is

a)

speed has nothing to do with gravity

b)

Faster

c)

Slower

16.

If an object is larger it has _____ of it's own gravity

a)

More

b)

Less

17.

If an object is smaller it has _____ of its own gravity

a)

More

b)

Less

18.

How many moons do outer planets have?

a)

0

b)

0-2

c)

More than 10

19.

If inner planets are smaller do they have more than 2 moons?

a)

Yes

b)

No

20.

True or False: Inner planets are spaced really far apart from eachother

a)

True

b)

False

21.

What keeps planets in orbit around the Sun?

a)

The sun's mass

b)

The sun's gravitational force

c)

the sun's period of rotation

d)

the sun's color