Practice Mechanical Advantage (m.a.), Velocity Ratio (v.r.), Efficiency (1.10)

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10 questions

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6 sample questions

Question 1.
Define Mechanical Advantage.
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Think about how much easier a task becomes with a machine.
Question 2.
What is the formula for Efficiency?
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Remember, it’s about comparing what you put in and what you get out.
3Question 3.
What does Mechanical Advantage represent?
- The output force
- The input force
- The ratio of output force to input force
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Think about how machines help lift heavier things.
4Question 4.
True or False: Efficiency is always more than 100%.
- True
- False
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Think about energy losses like friction.
Question 5.
A block and tackle system has a load of 600 N and lifts it with 100 N of effort over a distance of 4 meters for effort and 2 meters for the load. Calculate M.A., V.R., and Efficiency.
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Use the respective formulas step-by-step.
Question 6.
You have a lever giving an M.A. of 3. The load moves 2 meters when you move the effort for 6 meters. Is the efficiency greater than 50%?
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Check the relationship between M.A. and V.R. for efficiency.

6 more questions in this section. Enroll free to practise them all.