SIMPLE & COMPOUND MACHINES WITH VERIFIED SOLUTIONS

Simple Machine A machine that uses mechanical advantage to multiply force - Simple Machines makes work easier by changing two factors: Force & Distance. - Machines change the amount of force you exert change the distance over which you exert the force - The direction in which you exert the force Compound Machine A machine consisting of two or more simple machines operating together Example of Simple Machines Lever Wheel and Axle Pulley Inclined Plane Wedge Screw Inclined Plane Inclined Plane: An inclined plane is a ramp that increases the distance needed to move an object but makes the work easier to do. An inclined plane is a flat surface that is higher on one end. Wedge Wedges are two inclined planes joined back to back. Wedges are used to split things. Wheel and Axle The axle is a rod that goes through the wheel which allows the wheel to turn Pulley Pulleys are wheels and axles with a groove around the outside. It needs rope, chain or belt around groove to make it work. Screw A screw is an inclined plane wrapped around a cylinder. The inclined plane allows the score to move itself when rotated Lever A board that is placed on a pivot point called the fulcrum. As you apply force to one side, the other side applies a force to the object you want to move.