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A pulley helps me raise this flag into the air everyday.
PULLEY:a pulley is a grooved wheel with a rope/cable around it. When you pull the rope you change the direction of the input force.
A Wheel (and Axel) help the windmill go round and round to produce energy for my farm!
WHEEL AND AXEL: Made of two circular / cylindrical objects that are fastened together and rotate on the same Axel.
This wedge helps me keep my door open.
WEDGE:used to split a solid object with less force.
ROCK AND ROLLLLL
Screws help me keep the shelves and counter together.
SCREWS:an inclined plane wrapped around a cylinder.
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