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Gravity!

Total questions: 28

Worksheet time: 9mins

Name
Class
Date
1.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
2.

Which statement about gravity is true?

a)

gravity causes objects to pull towards one another

b)

gravity causes objects to push away from each other

c)

gravity only takes place between planets

d)

the moon doesn't have any gravity

3.
What is the SI unit used to measure force? 
a)

pounds 

b)

grams 

c)

Newtons 

d)

kg/ m2

4.

The measure of the force of gravity acting on an object is the object's ______.

a)
mass
b)
matter
c)
weight 
d)
terminal velocity 
5.

The amount of matter in an object.

a)

Weight

b)

Volume

c)

Mass

d)

Capacity

6.
Where would you have more mass, on Earth or on the Moon?
a)

Earth

b)

Moon

c)

Neither, my mass would be the same

7.

When will the forces of gravity between two objects be the GREATEST?

a)

when the masses of both objects are small and the objects are far apart

b)

when the masses of both objects are large and the objects are close together

c)

when the masses of both objects are small and the objects are close together

d)

when the masses of both objects are large and the objects are far apart

8.
Which of the following will not change in different gravitational fields?
a)
weight
b)
force
c)
mass
d)
pounds
9.
A person would weigh more on Jupiter than on the Earth because . . .
a)

Jupiter has more mass, and therefore exerts more gravity

b)

Jupiter has less mass, and therefore exerts more gravity

c)

Jupiter has more mass, and therefore exerts less gravity

d)

Jupiter has less mass and therefore exerts less gravity

10.

The gravitational attraction between two objects would increase if

a)

both masses are increased, and the distance between them is increased.

b)

both masses are increased, and the distance between them is decreased.

c)

both masses are decreased, and the distance between them is decreased.

d)

both masses are decreased, and the distance between them is increased.

11.

If the distance between Mercury and the Sun were increased, what could be done to maintain the same gravitational force of attraction between Mercury and the Sun?

a)

Decrease the masses of Mercury and the Sun.

b)

Decrease Mercury’s speed of orbit around the Sun.

c)

Increase the masses of Mercury and the Sun.

d)

Increase Mercury’s speed of orbit around the Sun.

12.

Why do planets orbit the Sun?

a)

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

b)

The Sun’s chemical composition makes it attract planets.

c)

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

d)

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

13.

Which of the following models shows the smallest gravitational attraction between the two masses?

a)

b)

c)

d)

14.
Which has a STRONGER force of gravity, Earth or the Moon?
a)
Earth
b)
Moon
15.
Why can astronauts jump and float a little on the Moon?
a)
Because the Moon's gravity is NOT that STRONG.
b)
Because the Moon's gravity is VERY STRONG. 
16.

"the tendency of an object to resist a change in its motion"

a)

weight

b)

inertia

c)

mass

d)

gravity

17.

What keeps the planets in orbit around the sun?

a)

gravity and inertia together

b)

gravity

c)

inertia

d)

neither gravity or inertia

18.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia 
19.
Because of inertia, a resting object will remain at ________.
a)

rest

b)

a constant speed

c)

school

d)

inertia 

20.
What would happen to the planets in the solar system if the sun’s gravitational force were to suddenly disappear?
a)
They will stop moving and become static.
b)
They will stop spinning.
c)
They will fly away in straight lines.
d)
They will start moving toward the Sun
21.

The diagram shows forces that keep the moon in orbit around Earth. What should number 1 be labeled?

a)

moon

b)

earth

c)

gravity

d)

inertia

e)

orbit

22.

The diagram shows forces that keep the moon in orbit around Earth. What should number 2 be labeled?

a)

moon

b)

earth

c)

gravity

d)

inertia

e)

orbit

23.

The diagram shows forces that keep the moon in orbit around Earth.

What should number 3 be labeled?

a)

moon

b)

earth

c)

gravity

d)

inertia

e)

orbit

24.

The diagram shows forces that keep the moon in orbit around Earth.

What should number 4 be labeled?

a)

moon

b)

earth

c)

gravity

d)

inertia

e)

orbit

25.

What two factors keep our moon in orbit around Earth?

a)

inertia

b)

mass

c)

velocity

d)

gravity

26.

Why does the Moon orbit Earth instead of the Sun?

a)

Gravity depends on distance and the Moon is closer to Earth.

b)

Only large objects orbit around the Sun and the Moon is too small.

c)

The Moon used to be part of Earth so it must orbit Earth.

d)

The Moon is moving too fast and cannot change its orbit.

27.

 
Which force in the Solar System is similar to the tension in the string?
a)
Friction
b)
Inertia
c)
Force
d)
Gravity
28.

The Sun's gravity holds each planet in its orbit. Neptune is at a farther distance from the Sun than Earth is. How does the effect of the Sun's gravity on Neptune compare with the effect of the Sun's gravity on Earth?

a)

The Sun has the same gravitational pull on all planets that are in orbit.

b)

The Sun has more gravitational pull on Neptune because it is larger.

c)

The Sun has less gravitational pull on Earth because it is closer.

d)

The Sun has less gravitational pull on Neptune because it is farther away.