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Name: _____________________ Class: _________ Date:__________ Notes on Simple Machines Name of Simple Machine 1st class lever 2nd class lever Diagram with input (effort) and output (resistance or load) forces labeled How does it make work easier? (changes force or distance?) How is the mechanical advantage of the simple machine calculated (formula & description)? 3 everyday examples of the simple machine Name of Simple Machine Inclined plane Fixed Pulley Diagram with input (effort) and output (resistance or load) forces labeled How does it make work easier, but not alter the amount of work done on an object? How is the mechanical advantage of the simple machine calculated (formula & description)? 3 everyday examples of the simple machine Name of Simple Machine Movable Pulley Block and Tackle Pulley Diagram with input (effort) and output (resistance or load) forces labeled How does it make work easier, but not alter the amount of work done on an object? How is the mechanical advantage of the simple machine calculated (formula &/or description)? 3 everyday examples of the simple machine Name of Simple Machine Diagram Wheel and axle How does it make work easier? Lifts or moves loads, increases distance, decreases force How is the mechanical advantage of the simple machine calculated (formula & description)? MA = radius of wheel radius of axle 3 everyday examples of the simple machine Car, wagon, doorknob, pencil sharpener, bike A wheel with a rod, called an axle, through its center: both parts move together Screw Holds things together or lifts, increases distance, decreases force The longer the spiral and the closer together, the more MA An inclined plane wrapped around a pole Wedge Cuts or spreads an object apart – increases distance, decreases force An object with at least one slanting side ending in a sharp edge Screw, jar lid, vise, bolt, drill, corkscrew MA = length of wedge Width of thickest part of wedge The longer & thinner, the more MA Knife, pin, nail, chisel, ax, snowplow, front of a boat