Same chapter3 marksDifficulty: Medium
Classify levers into three orders, giving one example of each.
Machines
1 markDifficulty: Medium
For an ideal machine the efficiency is 1, which means that:
- athe mechanical advantage is 1
- bthe mechanical advantage equals the velocity ratio
- cthe velocity ratio is 1
- dno effort is needed
Original Khojo Papers practice question — not from a past board paper.
Answer
the mechanical advantage equals the velocity ratio
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Efficiency is MA ÷ VR, so an efficiency of 1 makes the two equal.
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