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WorksheetsQuiz - Mechanical Advantage of Levers (4/30)
Total questions: 25
Worksheet time: 52mins
A load of 650 newtons is lifted with this pulley. What is the effort required to do this work if the Mechanical Advantage is 1?
300
325
600
650
How many classifications of levers are there?
3
2
5
4
In which position will the fulcrum be in relation to the effort and load in a first class lever system?
On the left
In the middle
On the right
What term defines the use of a lever to overcome a large load with relatively little effort?
Mechanical disadvantage
Mechanical advantage
Resistance arm
Which class lever is this?
First
Second
Third
How much work is produced when 350 N is used to move a car 5 m (W=Fd)?
(a)
Is this an example of work?
(True or False.) A teacher applies a force to a wall and becomes exhausted.
True
False
Work done = Force x _________
a. distance
b. acceleration
c. velocity
d. speed
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)?
0.5
2
3
6
A wheelbarrow is a good example of what class of lever?
first class
second class
third class
Which of these items is a first class lever?
scissors
fishing rod
tweezers
none of these
A simple machine has an input force of 12 N and an output force of 4 N. What is its mechanical advantage?
.33
3
8
16
The 3 parts of a lever are:
fulcrum, effort, and load
load, output, and input
input, effort, and fulcrum
pivot, output, and fulcrum
For a lever, MA is calculated using:
forces
distances
the lengths of the effort and resistance forces
gravity
A ramp has a mechanical advantage of 4. If it is 15 meters long, how high is it?
3.75 m
60 m
11 m
not enough information to solve
What is mechanical advantage?
The advantage a machine has over a bicycle
A measure of how much a complex machine reduces work
A measure of when is the best time to use a simple machine
the number of times a machine increases input force
a [ ] is a simple machine
shelf
wheel and axle
bird feeder
If I have a wedge with a MA of 5 and an output distance of 2, than what is the input distance?
10
100
1000
10000
Jeff is a landscaping contractor and lifts a rock weighing 600 Newtons by wedging a board under the rock. Jeff weighs 150 Newtons and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock?
0
2
4
0.25
