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Astronomy - Gravity and Orbits

Total questions: 14

Worksheet time: 13mins

Name
Class
Date
1.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
2.
Any object with mass has gravity.
a)
True
b)
Sometimes
c)
False
d)
Never
3.
As distance between two objects increase the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
4.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
5.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and matter
c)
distance and weight 
d)
weight and mass
6.
__________holds all of the planets in orbit around the sun.
a)
Force
b)
Motion
c)
Weight
d)
Gravity
7.

Which of the following is required for planets to stay in orbit around the Sun? (choose all that apply)

a)

Gravity

b)

Weight

c)

Friction

d)

Inertia (Forward Motion)

8.

Without gravity, the stars, planets and all objects in the universe would _______.

a)

continue to orbit each other

b)

move in a random direction

c)

move in a straight line

d)

stop moving

9.

A(n) _____ is the curved path of an object around a point/object in space.

a)

orbit

b)

rotation

c)

revolution

d)

phase

10.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
11.

Which system has the greater gravitational attraction between the two objects (if any)?

a)

System A

b)

System B

c)

Same gravitational attraction from System A and System B

12.

Is gravity a push, a pull, or both?

a)

push

b)

pull

c)

both

13.

Which color arrow shows the path the planet takes around the Sun due to the pull of gravity?

a)

The BLUE arrow

b)

The GREEN arrow

c)

The ORANGE arrow

d)

None of the above

14.

Which diagram, A or B, correctly shows the force of gravity?

a)

Diagram A

b)

Diagram B

c)

Both A and B

d)

Neither