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Simple Machines & Circuits Review

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

What needs to be done to this circuit so that the lamp lights up?

a)

Close the switch

b)

Add a source and close the switch

c)

Add another lamp

d)

Add another lamp and a switch

2.

1. Which switch or switches must be closed to make the lamps light?

a)

Only switch 1

b)

Only switch 1

c)

Switches 1 and 2

d)

Switches 1 , 2 and 3

3.

If lamp 1 is unscrewed from its holder, what will happen to lamp 2?

a)

It will get brighter

b)

It will stay the same brightness

c)

It will go out

d)

Nothing will happen

4.

If lamp 2 is unscrewed from its holder, what will happen to lamp1?

a)

It will stay lit

b)

It will go out

c)

It will get dimmer

d)

It will dissapear

5.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
6.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
7.

What would best complete this circuit?

a)

A wire

b)

A switch

c)

A battery

d)

A light bulb

8.
What kind of circuit is this?
a)
series
b)
parallel
9.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
10.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
11.
Which circuit (s) are parallel?
a)
A
b)
A and B
c)
B and C
d)
C
12.
If I add more light bulbs to a series circuit what happens?
a)
The current speeds up and the lights get brighter
b)
The current slows down and the lights dim lower
c)
The current speeds up and the lights dim lower
d)
The current slows down and the lights get brighter
13.
In a first class lever, the _____ is in the middle.
a)
Effort
b)
Fulcrum
c)
Load
d)
Machine
14.
The flag pole mechanism is an example of which simple machine? 
a)
Inclined Plane
b)
Lever
c)
Wedge
d)
Pulley
15.
Which of the following does a simple machine NOT do?
a)
Increase the force applied
b)
Increase the distance the force is applied over
c)
Change the direction the force is applied
d)
Change the amount of work that needs to be done
16.
The force placed on the simple machine to move the load is called the ____.
a)
Effort
b)
Fulcrum
c)
Load
d)
Lever
17.
Simple machines allow us to do less work.
a)
TRUE
b)
FALSE
18.
Simple machines make the work we have to do easier, but it is still the same amount of work.
a)
TRUE
b)
FALSE
19.
A simple machine used to push two objects apart.
a)
Lever
b)
Inclined Plane
c)
Wedge
d)
Screw
20.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.  
a)
wedge
b)
screw
c)
lever
d)
inclined plane 
21.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
22.
A simple machine that consists a rigid bar that pivot about a fixed point
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum 
23.
An axe is an example of a
a)
pulley
b)
inclined plane
c)
screw
d)
wedge 
24.
A seesaw is an example of a  
a)
wedge
b)
lever 
c)
inclined plane 
d)
pulley 
25.
A device that has two or more simple machines working together 
a)
fulcrum 
b)
pulley
c)
compound (complex) machine 
d)
motor 
26.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
27.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
28.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
pulley
d)
screw
29.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
30.
The fixed point on the lever is called 
a)
load
b)
resistance
c)
bar
d)
fulcrum
31.
Which of the following does a simple machine do?
a)
allows the users to apply less force over a longer distance
b)
reduce the amount of force needed to do work
c)
change the direction of the applied force
d)
all of the above
32.
Which is an example of someone using a simple machine to do work?
a)
a boy runs across a football field
b)
a banker counts money
c)
a mother pushes a stroller up a ramp
d)
a girl eats a sandwich
33.
A knife is an example of a (an)
a)
inclined plane
b)
wedge
c)
ramp
d)
pulley
34.
A push or pull is a 
a)
load
b)
fulcrum
c)
force
d)
work
35.
________________ is done whenever a force moves an object a distance
a)
load
b)
friction
c)
force
d)
work
36.
Which of the following is true for the picture?
a)
elephant is the fulcrum, mouse is the effort, triangle is the load
b)
mouse is the fulcrum, triangle is the effort, elephant is the load
c)
triangle is the fulcrum, mouse is the effort, elephant is the load
37.
What simple machine holds things together?
a)
Wedge
b)
Screw
c)
Lever
d)
Pulley
38.

Josh is pushing wood in a wheelbarrow. What 2 simple machines are in use?

a)

inclined plane, screw

b)

lever, wheel and axle

c)

screw, wheel and axle

d)

lever, pulley

39.
What two simple machines make up scissors?
a)
wheel and axle
b)
lever and wedge
c)
wedge and inclined plans
d)
inclined plane and lever
40.

Mr. Smith uses a ramp to load a heavy box onto the back of his truck. By using the ramp, instead of just lifting the box, Mr. Smith ____________.

a)

needs to use less force

b)

does less work

c)

has a harder job to do

d)

does more work

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