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A gear - Change the speed
A crowbar - Multiply the force
A pully - Change the direction
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Answer:
(i) - (b), (ii) - (c), (iii) - (a)
Explanation:
Answer:
(i) Crowbar. The crowbars curved end helps it to act as a lever which helps to multiply the force applied on an object.
(ii) Pulley. A pulley is a wheel with a grooved rim that is used to reduce the amount of force and change the direction of force needed to do work.
(iii) A gear in the cycle. The presence of multiple gears in the cycle helps us to maintain and/or change the speed of the cycle, which enables it to work on uneven terrain.
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