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WorksheetsLever, Wheel & Axle, Pulley (Set 1)
Total questions: 10
Worksheet time: 50mins
Work is done when...
a force is exerted on an object.
an object exerts a force onto another object.
a force is exerted on an object, causing the object to move.
an object does not move.
The unit of measure for work is...
Meters
Joules
Inches
Newtons
True or False: The equation for Work is the force multiplied by the distance perpendicular to the surface that the force is being applied.
True
False
A boy adds a movable pulley to a compound machine system. What Mechanical Advantage does a movable pulley provide?
It will change the direction of the force faster than one fixed pulley would.
It provides another wheel for the chain to sit on.
It will cause the object to move in the same direction.
It will greatly reduce the effort force needed to lift the load.
A lever rotates on a fixed point called a...
fulcrum
screw
wheel
ramp
Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds 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
8
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?
5.5 N
40.7 N
87.3 N
2640 N
A first class lever in static equilibrium has a 50-lb resistance force and 15-lb effort force. The lever’s effort force is located 4 ft from the fulcrum.
What is the Actual Mechanical Advantage (AMA) of the system? (Report answer to 0.00 precision).
Using static equilibrium calculations, calculate the length from the fulcrum to the resistance force. (Report answer to 0.00 precision).
Final answer should be recorded as follows:
Answer 1, Answer 2 ft
(a)
A wheelbarrow is used to lift a 200-lb load. The length from the wheel axle to the center of the load is 2 ft. The length from the wheel axle to the effort is 5 ft.
What is the Ideal Mechanical Advantage (IMA) of the system? (Report answer to 0.00 precision).
Using static equilibrium calculations, calculate the effort force needed to overcome the resistance force in the system. (Report answer to (0.0 precision).
Final answer should be reported as follows:
Answer 1, Answer 2 lb
(a)
A block and tackle system with nine supporting strands is used to lift a metal lathe in a manufacturing facility. The motor being used to wind the cable in the pulley system can provide 100 lb of force.
What is the Ideal Mechanical Advantage (IMA) of the system?
Report answer as follows:
"IMA = " insert answer" "
(a)
