calculating mechanical advantage
Post on 30-Dec-2015
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Calculating Mechanical Advantage
Inclined Plane, Pulley, Lever
Mechanical Advantage- Inclined Plane
Mechanical Advantage = distance height
distance
height
Now show me what you have learned!
What is the mechanical advantage of a ramp that is 10 meters long and 2 meters high?
10 meters
2 meters
A. 20 B. 5 C. 0.2 D. 10
What is the mechanical advantage of a ramp that is 12 meters long and 4 meters high?
A. 3 B. 48 C. 4 D. 0.3
Mechanical Advantage- Pulley
MA = count the # of “supporting ropes”
Now show me what you have learned!
What is the mechanical advantage of the pulley A, B, and C?
E
E
E
A B C
MA = 3 MA = 4MA = 3
Mechanical Advantage- Lever
MA = distance of the EFFORT arm distance of the RESISTANCE arm
MA = Output Force (Newtons)___ Input Force (Newtons)
Effort arm = INPUT FORCEResistance arm =
OUTPUT FORCE
What is the mechanical advantage of the lever below?
2 cm4 cm
A. 8 B. 0.5 C. 2 D. 4
MA = distance of the EFFORT arm distance of the RESISTANCE arm
What is the mechanical advantage of the lever below?
5 cm10 cm
A. 5 B. 0.5 C. 2 D. 50
MA = distance of the EFFORT arm distance of the RESISTANCE arm
What is the mechanical advantage of the lever below?
30 N60 N
A. 180 B. 20 C. 30 D. 2
MA = Output Force (Newtons)___ Input Force (Newtons)
What is the mechanical advantage of the lever below?
5 N20 N
A. 4 B. 100 C. 5 D. 0.25
MA = Output Force (Newtons)___ Input Force (Newtons)
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