*NEW UNIT* Simple Machines

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Simple machines are made to make something, well, simplistic. The official definition is “A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advantage to multiply force.” For example, a scissor is a simple machine. It makes cutting simpler. A light bulb is a simple machine. A door is a simple machine. Simple machines are all over the world – and life would be un-imaginable without them.

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Simple machines can be used as just one, but are better in groups. For example, a light bulb can be used as just one bulb, but it would be brighter with multiple.

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The six different types of simple machines are inclined plane, lever, wedge, wheel and axle, pulley, and screw.

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To understand what simple machines really are and what they really do for us. In order to do that, we need to understand what work is.

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Work definition = [Force Applied] x [Distance the Object Is Moved]

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A Newton is equal to the force that would give a 1 KILO mass an acceleration on of one meter per second using the gravity of earth. For example, 41 pennies is the weight of a newton. The Newton was named after Issac Newton. Newton created the Scientific Method and Discovered the Laws of Motion.. He is credited to being one of the first scientists, and is regarded by many as the smartest man ever.

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Fun fact: Issac Newton was a germaphobe. He was watching the apple fall through a window, he would not lean on a dirty tree.

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Issac Newton knew that gravity was real, but he needed proof. Newton needed to use math. Right then and there, he invented calculus to prove that the planets orbit under the sun. Calculus is still used today. He was really on another level.

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