Simple Machines

1. Power

1.1. Is the rate of doing work.

1.2. Power is the rate of doing work how fast it goes

1.3. snow bolowers and cars

1.4. Power=w/t

2. Mechanical advantages

2.1. Is the number of times that the machine increases an input force.

2.2. how much work something does for you.

2.3. Nutcracker, ramp

3. 1st class levers

3.1. Depending on the location of the fulcrum the mechanical advantage can be than 1, equal to 1 or less than 1

3.2. It can equal to 1 , less than. more than 1

3.3. Screw drew, seesaw, scissors.

4. 2nd class lever

4.1. The output force is located between the input force and the fulcrum.

4.2. Output will be inbetween input, folcrum

4.3. Wheelbarrow, ramps

5. 3rd class levers

5.1. The input force is between the output and fulcrum

5.2. Oppisite of 2nd class

5.3. Brooms, baseball bats

6. Wedge

6.1. is a v-shaped object whose sides are two inclined planes sloped toward each other

6.2. A tool to separate things

6.3. Door, or wedge

7. Work

7.1. Is the product of force and distance.

7.2. Work is when something is moved with force.

7.3. lifting weights, moving books to your desk.

7.4. W=F x D

8. Pullys

8.1. Is a simple machine that consist of a rope that fits into a groove in a wheel

8.2. A machine that lifts things up

9. Wheel and Axel

9.1. Consists of two disks or cylinders

9.2. A wheel and Axle

9.3. Steering wheel, or wheels on a car

10. Inclined Plane

10.1. Is a slanted surface along which a force moves

10.2. A slanted surface that does most of the work

10.3. Windy roads, or Ramps

11. Screw

11.1. Is an inclined plane wrapped around a cylinder.

11.2. A cylinder with lines surrounding it.

11.3. Scrwes