levers
Little kids CAN lift big kids! Scouts learn how to use levers and pulleys
Scouts at Orion Troop had a fun packed evening discovering that little kids CAN lift big kids. They learnt how to use levers and pulleys to gain mechanical advantage. However, you never get something for nothing so in order to lift something heavy, you still have to do the same amount of work, but it requires less effort each time you move it. With pulleys, you have to pull the rope through the pulleys much further than the distance of the object being lifted. Similar is true with levers. A lever at the lifting end is moved much further than the object being lifted.
These photographs will give you some idea of what we did.
(Click on each photograph for a larger image)
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