Simple Machines

1. Wedge

1.1. An object that has one thick end and one tapered end that is used to drive two parts apart or to secure them.

1.2. A wood wedge, a door stop.

2. Wheel and axel

2.1. A simple machine consisting of a large wheel connected to a smaller wheel or shaft called a axle.

2.2. A car, a bike, a skateboard.

3. Pulley

3.1. It relates to a simple machine by not having a motor.

3.2. A wheel on a axel or shaft that is used to pull an object

3.3. Example- engine lift

4. 1st class levers

5. 2nd class levers

6. 3rd class levers

7. Work

7.1. An activity involving mental or physical energy being done.

7.2. Examples- Moving a box into a moving truck.

7.3. W=FxD

8. Power

8.1. The amount of energy put out.

8.2. Examples- How hard it is to move a box.

8.3. p=FxD/T

9. Mechanical advantage

9.1. The ratio of force produced by a machine to the force applied.

9.2. Example- How much a lever works.

9.3. M/A=Input/output

10. Incline planes

10.1. A plain inclined at a angle

10.2. Example- a ramp into a moving truck.

11. Screw

11.1. A metal object with a thread that runs up and down to drive it into and join two objects.

11.2. Examples- Dry wall screw, wood screw, and self tapping screw.