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Understanding Simple Machines: Levers, Inclined Planes, Wheels, and More

Explore the fascinating world of simple machines, including levers, inclined planes, wheels and axles, screws, wedges, and pulleys. These devices make work easier by changing the direction or magnitude of forces. Learn about the different classes of levers, how inclined planes function, and the efficient mechanics behind wheels and pulleys. Discover practical applications, from bottle openers to ramps, and see how these machines enhance our daily activities by reducing effort and increasing output.

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Understanding Simple Machines: Levers, Inclined Planes, Wheels, and More

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  1. Simple Machines levers inclined plane wheel & axle wedge screw pulley

  2. a solid bar that rotates around a fixed point, or fulcrum. Definition: makes work easier: examples: Definition: Makes work easier: A sloping surface or ramp changes direction or size of force 1st class lever: examples: 2nd class lever examples: 3rd class lever examples: Increases distance and decreases force bottle opener wheelbarrow see-saw crowbar scissors tweezers staple remover bat picture picture Ramps on moving trucks, handicapped ramps, slide, picture size & direction greater output decdist/inc. out speed definition: makes work easier: examples: definition: makes work easier: examples: A simple machine with a thick end and a thin end; used to cut, split, or pierce objects. An inclined plane that moves. Definition: a wheel attached to an axle (stick) Changes the size of the force by increasing the distance. Let students turn the axle of a doorknob. Apply input force over a larger area to decrease the amount of force you have to put in. steering wheel, doorknobs, screwdriver, fan Doorstop, chisel, ice scraper, ax, knife, a wheel with a grooved rim and a rope that rides in the groove def: makes work easier: definition: makes work easier: examples: An inclined plane wrapper around a post change direction (fixed), reduce size of force fixed pulley moveable pulley block & tackle Increases distance, decreases input force Lid of a jar, drill, screw, spiral staircase

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