Simple Machines

1. 6 Basic Simple Machines

1.1. Lever - made with a straight bar that moves on a fixed point called a fulcrum

1.1.1. Seesaw

1.1.2. Crowbar

1.1.3. Bat

1.2. Pulley - made with a wheel and rope

1.2.1. Miniblinds

1.2.2. Flagpole

1.2.3. Drapes

1.3. Inclined plane - any slanted surface

1.3.1. Ramp

1.3.2. Dump truck

1.3.3. Slide

1.4. Wheel and axle - made with a wheel that turns at a center post

1.4.1. Door knob

1.4.2. Roller skates

1.4.3. Toy car

1.5. Screw - made with an inclined plane wrapped around a center post

1.5.1. Drill

1.5.2. Jar lid

1.5.3. Spiral staircase

1.6. Wedge - two inclined planes that form a V-shape

1.6.1. Axe

1.6.2. Knife

1.6.3. Fork

2. What are simple machines?

2.1. Simple machines were created by humans to make work easier. Simple machines allow us to push or pull loads by applying minimal effort.

3. History of Simple Machines

3.1. Idea of simple machines originated from Greek philosopher, Archimedes

3.2. 3rd Century BC

3.3. Discovers mechanical advantage