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Net Force & Inclined Planes

Total questions: 57

Worksheet time: 40mins

Name
Class
Date
1.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.  
a)
wedge
b)
screw
c)
lever
d)
inclined plane 
2.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
3.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
4.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
5.
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
6.
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
7.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
8.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
9.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
10.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
11.
If the net force is 0 the object is... 
a)
in motion
b)
in the same place
12.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
13.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
14.
True or False: The larger the arrow the more the net force.
a)
True
b)
False
15.
You and your friend, are playing tug of war. Your friend pulls with a force of 55 N, to the rights. You pull with a force of 65 N, to the left. What is the net force on the rope?
a)
10 n, to the left
b)
20 N
c)
10 N, to the left
d)
10 N, to the right
16.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 
a)
velocity
b)
gravity
c)
net force
d)
distance
17.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
18.
What is the net force?
a)
65 N left
b)
65 N right
c)
35 N left
d)
35 N right
19.
What is the net force?
a)
4.2 N left
b)
4.2 N right
c)
2.2 N left
d)
2.2 N right
20.
What is the net force?
a)
5.5 N left
b)
5.5 N right
c)
2.5 N left
d)
2.5 N right
21.
What is the net force?
a)
11 N left
b)
11 N right
c)
3 N left
d)
3 N right
22.
What is the net force?
a)
3 N left
b)
3 N right
c)
7 N left
d)
7 N right
23.
What is the net force?
a)
1.3 N left
b)
1.3 N right
c)
3.7 N left
d)
3.7 N right
24.
What is a force?
a)
the PUSH or PULL on an object 
b)
The MOTION an object creates
c)
The objects HITTING one another
d)
Going REALLY FAST
25.
Is it BALANCED? 
a)
Yes
b)
No
26.
What is the FORCE? 
a)
5 N
b)
10 N
c)
400 N
d)
0 N
27.
What is the magnitude (size) and direction of the net force?
a)
14 N Down
b)
14 N Up
c)
6 N Up
d)
6 N Down
28.
What is the magnitude (size) and direction of the net force?
a)
21 N to the Left
b)
3 N to the Left
c)
21 N to the Right
d)
3 N to the Right
29.
What is the magnitude (size) and direction of the net force?
a)
10 N to the Right
b)
10 N to the Left
c)
0 N
d)
8 N to the Left
30.
What is the magnitude (size) and direction of the net force?
a)
5 N to the Right
b)
5 N to the Left
c)
10 N to the Right
d)
4 N to the Left
31.
Two people are pushing a disabled car. One exerts a force of 200 N east, the other a force of 150 N east. What is the net force exerted on the car?
a)
50 N east
b)
350 N east
c)
50 N west
d)
350 N west
32.
What forces are balanced ,what happens?
a)
they move slowly
b)
they do not move
c)
they move quickly
d)
net force is at least 10N
33.
Sue pushes a box 250 N to the right. Ann pushes 375 N to the left. What's the net force?
a)
125 N to the right
b)
125 N to the left
c)
625 N to the left
d)
625 N to the right
34.
Which of these is evidence that a force has acted on an object?
a)
Change in the object's mass.
b)
A stationary object lying on the ground.
c)
Change in the direction of the object's motion.
d)
The object moving in a straight line at constant velocity.
35.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
36.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
37.
If these teams are pulling with the same amount of force what will happen?
a)
The left team will win.
b)
They will not move at all.
c)
The right team will win.
d)
Both will fall down.
38.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
39.

Calculate the Net Force.

a)

60N, Left

b)

40N, Right

c)

0 N

d)

60N, Right

40.
This is used to MEASURE force:
a)
A balance scale
b)
A digital scale
c)
A spring scale
d)
A mass scale
41.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
42.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun 
d)
A baseball that has been thrown to home plate.
43.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
Forces of the table pushing up and gravity pulling down are balanced
44.
A force acting in the opposite direction of an object in motion
a)
Gravity
b)
Buoyant
c)
Friction
d)
Normal
45.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
46.
When forces are balanced, they are equal in strength but opposite in _____.
a)
direction
b)
position
c)
speed
d)
location
47.

Are the forces balanced or unbalanced?

Hint: look at the size of the arrow

a)

Balanced

b)

Unbalanced

48.
A simple machine is a device that helps to reduce the amount of _____ required to work.
a)
force
b)
energy
c)
work
49.
A ramp is an example of a(n)
a)
inclined plane
b)
fulcrum
c)
force
d)
lever
50.
How can you decrease the effort force needed to push a weight to the top of the ramp? 
a)
cover the surface with carpet
b)
increase the length of the ramp
c)
increase the height of the ramp
d)
decrease the length of the ramp
51.
The greatest amount of force is required to move the metal block up which inclined plane?
a)
A
b)
B
c)
C
d)
D
52.

What is the MAIN function of simple machines like inclined planes and pulleys?

a)

They slow down movement—making our work easier.

b)

They make it easier to do the same amount of work.

c)

They decrease the amount of work needed to be done by increasing force.

d)

They eliminate work completely by providing an object to help do a job.

53.

Jaelyn’s parents cannot lift a washing machine up a stairway. Jaelyn tells her parents that it would be much easier to move the machine if they make a ramp and push the washer up the ramp. Which kind of simple machine is Jaelyn suggesting they use?

a)

Wedge

b)

Wheel and axle

c)

Pulley

d)

Inclined Plane

54.

All of the following are examples of inclined planes EXCEPT - - -

a)

an escalator

b)

an uphill trail

c)

a slide

d)

a table

55.

The diagram below shows a student using a spring scale to pull a wooden block up a ramp that is resting on a stack of books. The spring scale can be used to measure _________ in _________ .

a)

force, weight

b)

mass, grams

c)

force, Newtons

d)

volume, Newtons

56.

A family is moving from Pennsylvania to Connecticut. The movers are using a ramp to load boxes onto the truck. The advantage of the ramp is to reduce the—

a)

force needed to raise the boxes by increasing the distance the box is moved

b)

time needed to raise the boxes by reducing the distance the box is moved

c)

work needed to raise the boxes by increasing the distance the box is moved

d)

effort needed to raise the boxes by reducing the distance the box is moved

57.

Friction is a force that acts in a direction ___________ of movement.

a)

similar

b)

opposite

c)

parallel

d)

perpendicular

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