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Pulleys & Force Worksheet
TABLE#:
TEAM Name:
Pulleys & Force

Design systems to lift a bottle 10cm.

System with 1 pulley:

Ideal Mechanical Advantage:
________
System with 2 pulleys:
Ideal Mechanical Advantage:
Actual Mechanical Advantage: ________
Actual Mechanical Advantage: ________
Efficiency of System:
Efficiency of System:
Actual MA 
Ideal MA 
________
Output force (at load)
Input force (applied)
Efficiency 
Distance moved at Input
Distance moved at Load

________
Actual Mechanical Advantage
Ideal Mechanical Advantage


________
Test both designs at a test station.

Pulleys & Force
Developed by IEEE as part of TryEngineering
www.tryengineering.org
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Join with another group. Design two (2) systems to lift a bottle 10cm using all
four (4) pulleys.


Design #1 (4 pulleys):
Ideal Mechanical Advantage:

________
Design #2 (4 pulleys):
Ideal Mechanical Advantage:
________
Actual Mechanical Advantage: ________
Actual Mechanical Advantage: ________
Efficiency of System:
Efficiency of System:
________

Which design had the best efficiency?

Which design had the best Actual Mechanical Advantage?

Do these answers make sense?
Pulleys & Force
Developed by IEEE as part of TryEngineering
www.tryengineering.org
________