SIMPLE MACHINES

WHAT ARE SIMPLE MACHINES❓

Simple machines consist of levers, pulleys ⛓ , inclined planes, wheel & axles, wedges, and gears. ⚙

A lever has 3️⃣ classes.

LEVER 1️⃣

• The fulcrum is placed between the load and effort.
• ex: seesaw, crowbar, etc.

Lever 2️⃣

• The load is in between the fulcrum and the effort.
• ex: doors, staplers, can openers, & wheelbarrows.

Lever 3️⃣

• The effort is between the load and the fulcrum.
• ex: fishing rods, arms, a hoe 👯 , baseball bat, & broom.

Pulley ⛓

A pulley uses a wheel and rope. One end of the rope is connected to the load, the other end is pulled through the wheel.

Inclined plane

• A flat, surface tilted at an angle.
• One end is higher than the other.
• Used for raising or lowering loads.

WHEEL & AXLE

• They are attached so that they can rotate.
• A force is transferred from one another.

WEDGE ⚒

• A triangular shaped tool.
• It is used to push objects apart.

Gear ⚙

• a set of toothed wheels that work together.
• The teeth have to fit into each other.