Simple Machines

1. Work

1.1. The scientific definition of work is: using a force to move an object a distance.

1.2. force being applied to an object.

1.3. Joules

1.4. W = F*D

2. 1st class levers

2.1. fulcrum placed between the load and the effort, as in the seesaw, crowbar, and balance scale.

2.2. seesaws

2.3. A simple machine because it is a work that can be used without no machine

3. Incline Planes

3.1. a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load.

3.2. A ramp

3.3. It is a simple machine because it takes work

4. Wedge

4.1. a piece of hard material with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer

4.2. an axe

4.3. it relates to it because it is a handy type of work and uses no machine

5. Screw

5.1. a simple machine of the inclined plane type consisting of a spirally grooved solid cylinder and a correspondingly grooved hollow cylinder into which it fits

5.1.1. A screw

5.2. a screw

6. Power

6.1. Power is the rate at which work is done or energy converted.

6.2. Watts

6.3. P = W/T

7. Mechanical Advantage

7.1. the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine

7.2. broom

7.3. no unit

7.4. MA*F

7.5. Its a simple machine because it holds a weight the way a machine wouldn't

7.6. Input distance/ output distance

8. 2nd class levers

8.1. Second-class levers have the load between the effort and the fulcrum

8.2. a wheelbarrow

8.3. Its a simple machine because it holds the effort that a real machine would.

9. 3rd class levers

9.1. the effort placed between the load and the fulcrum.

9.2. tweezers, scissors, a staple remover

9.3. A simple machine because you could use them with just your bare hands rather than a real machine.

10. Wheel and Axes

10.1. a simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened.

10.2. wheel and axle