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Simple Machines

Total questions: 46

Worksheet time: 2hrs 32mins

Name
Class
Date
1.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
2.
work is...
a)
energy from the sun
b)
a type of machine
c)
a force that moves an object
d)
a force that pulls you toward the earh
3.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
pulley
d)
screw
4.
What type of simple machine is found on the floor of a bathtub?
a)
screw
b)
inclined plane
c)
wedge
d)
pulley
5.
Which of these is an example of a wedge?
a)
skateboard
b)
broom
c)
stairs
d)
butter knife
6.
A screw is made up of _____ wrapped around a post or rod.
a)
threads
b)
springs
c)
treads
d)
strings
7.
Which of these is not an example of an inclined plane?
a)
ladder
b)
stairs
c)
wall
d)
driveway
8.
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
9.
Jan is using a screwdriver, which is a type of ...
a)
a pulley
b)
a screw
c)
a lever
d)
a wheel and axle
10.
Which is a characteristic of a simple machine?
a)
They run on electricity.
b)
They take a long time to make.
c)
They have few or no moving parts.
d)
They are not very large.
11.
Which type of simple machine would be found on the bottom of a wagon??
a)
a pulley
b)
a screw
c)
a wedge
d)
a wheel and axle
12.
What two parts might make a pulley?
a)
wheel and axle
b)
wheel and wire
c)
wheel and screw
d)
wheel and fulcrum
13.
What simple machine can be used to split things apart and also it can hold open a door?
a)
Lever
b)
Pulley
c)
Wedge
d)
Screw
14.
What simple machine holds things together?
a)
Wedge
b)
Screw
c)
Lever
d)
Pulley
15.
What simple machine has a fulcrum and can be used to lift a weight?
a)
Pulley
b)
lever
c)
screw
d)
wedge
16.
What simple machine has a wheel with a groove on it that keeps a rope in place?
a)
pulley
b)
lever
lever
c)
screw
wedge
d)
wedge
screw
17.
Which simple machine is made up of two parts and can be found on bikes, wagons and wheelbarrows?
a)
wheel and axle
b)
inclined plane
c)
lever
d)
screw
18.
Which simple machine doesn't move and a heavy object can be rolled or pushed up this machine?
a)
wheel and axle
b)
inclined plane
c)
wedge
d)
screw
19.
What kind of work is made easier by the wheels of this object?
a)
pushing a heavy load
b)
lifting a heavy load
c)
dividing a heavy load
d)
holding a small load
20.
What type of simple machine are these people using to move the wheel chair into the school bus?
a)
lever
b)
wedge
c)
inclined plane
d)
pulley
21.
A push or pull that can move an object is a
a)
fulcrum
b)
force
c)
machine
d)
lever
22.
What is the fixed point where a lever turns or pivots?
a)
load
b)
work
c)
fulcrum
d)
screw
23.
What is anything that makes work easier called?
a)
screw
b)
wedge
c)
force
d)
machine
24.
A machine with few or no moving parts is called a ______.
a)
machine
b)
compound machine
c)
simple machine
d)
work
25.
This picture is an example of a _________.
a)
pulley
b)
wedge
c)
wheel and axle
d)
screw
26.
Which of the following objects is NOT compound machine?
a)
scissors
b)
thumb tack
c)
light bulb
d)
screw
27.
How can the lever be balanced?
a)
add weight to the right side
b)
move the fulcrum right
c)
move the heavier weight back
28.
All of these are examples of a wheel and axle except:
a)
pizza cutter
b)
doorknob
c)
windmill
d)
lever
29.
A push or pull is a 
a)
load
b)
fulcrum
c)
force
d)
work
30.

exerting a force on an object that causes the object to move some distance

a)

work

b)

power

c)

mechanical advantage

d)

efficiency

31.

the amount of work you do when you exert one Newton of force to move the object one meter

a)

joule

b)

newton

c)

meter

d)

output force

32.

the rate at which work is done

a)

power

b)

work

c)

machine

d)

efficiency

33.

a device that allows you to do work in a way that is easier

a)

machine

b)

compound machine

c)

work

d)

power

34.

the force you exert on the machine

a)

input force

b)

output force

c)

efficiency

d)

mechanical advantage

35.

the force the machine exerts on an object

a)

input force

b)

output force

c)

efficiency

d)

mechanical advantage

36.

the ratio of output force to input force

a)

work

b)

mechanical advantage

c)

efficiency

d)

power

37.
How much work is produced when 350 N is used to move a car 5 m (W=Fd)?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
38.

What is mechanical advantage?

a)

The advantage a machine has over a bicycle

b)

A measure of how much a simple machine reduces work

c)

A measure of when is the best time to use a simple machine

d)

the number of times a machine increases input force

39.
Lamar Gant, U.S. powerlifting star, became the first man to deadlift five times his own body weight in 1985. Deadlifting involves raising a loaded barbell from the floor to a position above the head with outstretched arms. Determine the work done by Lamar in deadlifting 300 kg to a height of 0.90 m above the ground (W=Fd).
a)
270 J
b)
2646 J
c)
333 J
d)
3.00X10-3 J
40.
If the weight of the block is 10N, how much force does one have to apply to lift it using this pulley (MA=2)?
a)
2N
b)
5N
c)
10N
d)
15N
41.

A box of weight W is lifted by a force F using a lever as shown below.

What is the mechanical advantage of the lever (MA=Input Distance/Output Distance)?

a)

0.5

b)

2

c)

3

d)

6

42.

Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever (MA=Output Force/Input Force)?

a)

1

b)

10

c)

100

d)

1000

43.
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?
a)
1
b)
10
c)
100
d)
1000
44.
A lever and fulcrum are used to lift a fallen tree, which has a weight of 480 N. If the lever has a mechanical advantage of 5.5, what is the input force that will begin lifting the tree off the ground?
a)
5.5 N
b)
40.7 N
c)
87.3 N
d)
2640 N
45.
When given input and output forces, you find mechanical advantage by:
a)
Output divided by input
b)
Input divided by output
c)
Output multiplied by input
46.
What is the output force?
a)
12 m
b)
50 N
c)
150 N
d)
4 m

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