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WorksheetsMechanisms Unit 1.1
Total questions: 25
Worksheet time: 29mins
There are _____ simple machines
4
5
6
7
The fixed point of rotation on a lever.
Fulcrum
Center
Wedge
Pivot
What is mechanical advantage?
The advantage a machine has over a bicycle
A measure of how much a simple 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 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=Effort Arm/Load arm)?
0.5
2
3
6
What is the ideal mechanical advantage of the following pulley?
1
2
4
6
What is the ideal mechanical advantage of the following pulley?
1
2
4
6
What is the ideal mechanical advantage of the following pulley?
1
2
4
6
The mechanical advantage of this inclined plane is...(MA=Resistance Force/Effort Force)
2.4
3.4
4.4
A type of simple machine that includes an inclined plane wrapped around a cylinder
Screw
Lever
Wheel & Axle
Wedge
The distance between two adjacent threads on a screw.
Groove
Thread
Pitch
Cylinder
What does the 20 mean?
Pitch
Screw Diameter
Threads Per Inch
Screw Length
Thread Type
An inclined plane is 15 meters long and raises 3 meter high. If you want to push a 20 lbs box up the inclined plane, how much effort force will you need? Remember, DeFe = DrFr
900 lbs
4 lbs
2.25 lbs
100 lbs
Find the Mechanical Advantage for the wedge shown.
L = 8 in
t = 2.5 in
3.2
0.75
0.31
1.5
A wedge is struck with a force of 20 lbs. The wood the wedge is splitting resists with a force of 80 lbs. What is the mechanical advantage of the situation?
2
3
4
5
