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WorksheetsGravity, Newton's Laws, Kepler's Laws, and Forces
Total questions: 40
Worksheet time: 30mins
Name
Class
Date
1.
Everywhere in the universe and object's ____________ is the same?
a)
mass
b)
weight
c)
gravity
d)
acceleration
2.
Planets orbit the Sun in a shape called a(n)
a)
circle
b)
ellipse
c)
focus
d)
perihelion
3.
A measure of the amount of gravitational force of an object is __________.
a)
mass
b)
weight
c)
distance
d)
gravity
4.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
5.
When decreasing the distance between objects, what happens to the strength of gravity?
a)
The strength of gravity increases
b)
The strength of gravity decreases
c)
Nothing changes
d)
I am not sure
6.
Which of the following will not change in different gravitational fields?
a)
wieght
b)
force
c)
mass
d)
pounds
7.
An ellipse is drawn around two points called
a)
aphelion
b)
perihelion
c)
foci
d)
axis
8.
What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?
a)
The area between A, B and the Sun is the largest.
b)
The area between H, I and the Sun is the largest
c)
Both areas are equal in size
d)
There is not enough information to determine the areas
9.
A planet moves __________ when it is farthest from the sun.
a)
faster
b)
slower
10.
Every action has an equal and opposite reaction.
a)
Newton's 2nd Law
b)
Kepler's 1st Law
c)
Newton's 3rd Law
d)
Kepler's 3rd Law
11.
An object at rest, stays at rest. Object in motion, stays in motion unless acted upon by an unbalanced force.
a)
Newton's 1st Law
b)
Newton's 3rd Law
c)
Kepler's 2nd Law
d)
Kepler's 1st Law
12.
If you exert the same force on two objects of different mass, you will get different accelerations (changes in motion).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Kepler's 3rd Law
d)
Kepler's 2nd Law
13.
Planets farther away from the sun have a longer path and travel slower because gravity is weaker.
a)
Kepler's 2nd Law
b)
Newton's 3rd Law
c)
Kepler's 3rd Law
d)
Newton's 3rd Law
14.
Two forces acting in opposite directions but one is stronger than the other.
a)
Gravity
b)
Unbalanced Force
c)
Velocity
d)
Balanced Force
15.
This is a push or pull in any direction.
a)
shove
b)
force
c)
motion
d)
distance
16.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
17.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
18.
What is the net force of this object?
a)
10 N, no direction
b)
10 N left
c)
5 N right
d)
0 N no direction
19.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
20.
Two balls that collide will have an equal but opposite force upon one another
a)
First Law
b)
Second Law
c)
Third Law
d)
Law of Inertia
21.
Which law explains why you need to wear a seat belt?
a)
First
b)
Second
c)
Third
d)
Gravity
22.
What are the factors which combine to to keep celestial bodies in orbit?
a)
Air Resistance and Gravity
b)
Gravity and Inertia
c)
Inertia and orbital speed
d)
Orbital speed and gravity
23.
Which planet in our solar system will have the fastest orbital speed?
a)
Venus
b)
Earth
c)
Saturn
d)
Mercury
24.
As mass increases, gravity ________________.
a)
Increases
b)
Decreases
c)
Stays the same
25.
Suppose the Moon were closer to Earth. How would the force of gravity between Earth and the Moon be different?
a)
There would be no difference
b)
There would be a weaker force of gravity between them
c)
There would be a stronger force of gravity
26.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
27.
Find the net force: 15 N to the right, and another 15 newtons to the right.
a)
0 N Right
b)
0 N Left
c)
30 N Left
d)
30 N Right
28.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
29.
Is this and example of a balanced or unbalanced force?
a)
balanced
b)
KITTIES!
c)
unbalanced
d)
pshhh
30.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
31.
What is the net force?
a)
5 N
b)
45 N to the left
c)
5 N to the right
d)
45 N to the right
32.
If there are two forces going in the SAME direction, you would ...?
a)
(-) Subtract the forces
b)
(+) Add the forces
c)
Neither
d)
(x) Multiply
33.
What is the Net Force in this picture?
a)
40N, left
b)
40N, right
c)
20N, balanced
d)
0N, balanced
34.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
35.
What is the net force?
130 N 150 N
<------ --------->
130 N 150 N
<------ --------->
a)
20 N
b)
30 N
c)
20 N to the right
d)
30 N to the left
36.
What is the net force?
200 N 150 N
<------ --------->
200 N 150 N
<------ --------->
a)
50 N to the right
b)
50 N to the left
c)
60 N to the left
d)
This is a balanced force
37.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
38.
When you kick a ball across a feild and it hits someone in the face and they fly backwards
a)
Action=Reaction
b)
Speed
c)
Motion
d)
Air
39.
The swimmer moves her hand down and to the left and her body goes forward to the right.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
40.
A soccer ball accelerates more than a bowling ball when thrown with the same force.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
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