Font size
WorksheetsLever Mechanical Advantage Practice
Total questions: 16
Worksheet time: 1hrs 20mins
Which of the following is a characteristic of a Class 3 lever?
The effort is between the load and the fulcrum.
The load is between the effort and the fulcrum.
The fulcrum is between the effort and the load.
The effort and the load are at the same point.
In a Class 2 lever, where is the load located?
Between the effort and the fulcrum
At the end opposite to the effort
Next to the fulcrum on the same side as the effort
At the same point as the fulcrum
What is the formula to calculate the mechanical advantage (MA) of a Class 1 lever?
MA = Input ForceOutput Force
MA = Output DistanceInput Distance
MA = Output ForceInput Force
MA = Input DistanceOutput Distance
If the mechanical advantage of a lever is 1, what does this indicate about the input and output forces?
The input force is twice the output force.
The output force is twice the input force.
The input force is equal to the output force.
It is impossible to determine without more information.
For a Class 3 lever, if the mechanical advantage is less than 1, which of the following statements is true?
The output force is greater than the input force.
The input force is greater than the output force.
The input and output forces are equal.
The lever is not functioning properly.
In a Class 2 lever, if the distance from the fulcrum to the load is 2 meters and the distance from the fulcrum to the effort is 4 meters, what is the ideal mechanical advantage?
0.5
1
2
4
If a Class 1 lever has an input (effort) arm of 4 meters and an output (resistance) arm of 2 meters, what is its ideal mechanical advantage?
0.5
1
2
4
How do you calculate the input (effort) force if the mechanical advantage is 5 and the output (resistance) force is 100N?
20N
500N
50N
5N
What is the resistance force if the effort force is 25N and the mechanical advantage of the lever is 3?
8.33N
75N
50N
100N
In a Class 1 lever, if the effort arm is 3 meters and the ideal mechanical advantage is 3, what is the length of the resistance arm?
1 meter
3 meters
6 meters
9 meters
A wheelbarrow has to lift dirt off the ground in order to transport it. The length of the lever is 9.825m. The length from the fulcrum to the load is is 9.001m. What is the ideal mechanical advantage generated by the lever?
188
1.09
8.24
9.916
A rod is able to lift off a weight by raising its handle. The distance from the end of the fulcrum to the load is 41.99m. The length of the lever is is 51.3m. Solve for the ideal mechanical advantage generated by the lever.
93.3
0.819
1.22
9.31
Compute the ideal mechanical advantage of the following lever.
(input = effort, output - resistance)
0.667
1.5
6
4
A worker uses an iron bar to raise a manhole cover weighing 65N. The effort arm of the lever is 60cm long. The resistance arm is 25cm long. What is the mechanical advantage of the iron bar?
(a)
In order to move a large log at camp we use a long pole. The mechanical advantage of the pole is 8. If the log weighs 156N, what effort force is needed to lift the log?
(a)
Three of your friends are all sitting on one end of a seesaw. The combined weight is 275N. The length from the fulcrum to your friends is 2.5m. The rest of the seesaw (from fulcrum to the other end) is 4.5m. What effort force, to the nearest tenth, is needed to lift your friends?
(a)
