Simple Machines

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Simple Machines by Mind Map: 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. Power

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

2.2. Watts

2.3. P = W/T

3. Mechanical Advantage

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

3.2. broom

3.3. no unit

3.4. MA*F

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

3.6. Input distance/ output distance

4. 1st class levers

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

4.2. seesaws

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

5. 2nd class levers

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

5.2. a wheelbarrow

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

6. 3rd class levers

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

6.2. tweezers, scissors, a staple remover

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

7. Incline Planes

7.1. 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.

7.2. A ramp

7.3. It is a simple machine because it takes work

8. Wedge

8.1. 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

8.2. an axe

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

9. Screw

9.1. 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

9.1.1. A screw

9.2. a screw

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