WAEC Physics 2017 Objective — Question 15
Question 15 of 50 from the West African Examinations Council (WAEC) Physics 2017 Objective paper, with the correct answer and a full explanation.
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A machine is said to be a third class lever when the
- A. A. load is between the fulcrum and effort
- B. B. fulcrum is between the effort and load
- C. C. effort is between the fulcrum and loadCorrect
- D. D. fulcrum is directly below the load
Explanation
For a third class lever, the effort is between the load and the fulcrum, e.g. sugar tongs, forearm (M.A and V.R are less than 1, i.e. mechanical disadvantage).
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