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WorksheetsLaw of Gravitation
Total questions: 23
Worksheet time: 20mins
Name
Class
Date
1.
Two asteroids exert a gravitational force, F, on each other. Some time later, the asteroids are now three times as far from each other as before. Which of the following represents the gravitational force at this distance?
a)
F/3
b)
F/2
c)
F/6
d)
F/9
2.
Luke Skywalker has a mass of 13 kg and weight of 127.4 N on earth. Find his weight on the Endor moon. Acceleration on Endor due to gravity is 2 m/s/s.
a)
254.8 N
b)
13 kg
c)
26 N
d)
127.4 kg
3.
The amount of matter in an object
a)
mass
b)
weight
c)
inertia
d)
gravity
4.
What states that "every object in the universe attracts every other object"?
a)
Law of Universal Gravitation
b)
Newton's First Law of Motion
c)
My mother
d)
Inertia & gravity
5.
Which of the following is Newton's Law on Gravitation?
a)
F=Gm1m2/r
b)
F = Gm1m2/r2
c)
F = Gm1m2/2r
d)
F = m1m2/2r
6.
The moon and other satellites rotate around the earth. Identify the force that keeps these satellites in orbit.
a)
gravity
b)
friction
c)
a strong force
d)
electromagnetic force
7.
Why did Newton think that there was a force acting on the moon?
a)
Because the moon always keeps one side toward Earth
b)
Because the moon moves in a curved path
c)
Because there is no air on the moon
d)
Because the moon is moving
8.
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
9.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
d)
I don't care
10.
Any object with mass is surrounded by a gravitational field.
a)
True
b)
Fallse
c)
False
d)
Tru
11.
Force of gravity is directly proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
12.
Force of gravity is inversely proportional to
a)
Mass
b)
Weight
c)
Distance squared
d)
Time
13.
As distance between two objects increase the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
14.
As the two objects' masses increases, the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
15.
If Earth's mass was increased, with no change in radius, your weight would?
a)
increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
nothing, mass is not affected by gravitational force
16.
As this ride starts to spin in a circular motion the swings move outward. What is the cause of this outward motion
a)
Gravity
b)
Centripetal Force
c)
Speed
d)
Inertia
17.
An object has a weight of 12N on the Earth. It is placed on the moon, where gravity is (1/6) as strong as on the Earth. What is its weight on the moon?
a)
2 N
b)
72 N
c)
6 N
d)
18 N
18.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
speed
d)
friction
19.
Two objects move toward each other due to gravity. As they get closer their attraction _____________.
a)
increases
b)
decreases
c)
remains the same.
20.
As distance separating the objects increases the force
a)
increases
b)
decreases
c)
stays the same
21.
If two large objects with different masses move toward each other under the influence of mutual gravitation, which force is greater?
a)
The force on the larger object
b)
The force on the smaller object
c)
The force on both is the same.
22.
If the gravitational force between two spheres is 400 N, and the distance between them is doubled, the force will be ____________
a)
400 N
b)
200 N
c)
100 N
d)
40 N
23.
suppose the gravitational force between two spheres is 60N. If the magnitude of each mass doubles, what is the force between the masses?
a)
30 N
b)
60 N
c)
120 N
d)
240 N
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