Workandsimplemachines

What is work? ,[object Object],[object Object]

Work or Not? ,[object Object],[object Object],[object Object]

What’s work? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Formula for work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

W=FD ,[object Object],[object Object]

W=FD ,[object Object],[object Object],[object Object]

Power ,[object Object],[object Object],[object Object],[object Object]

Check for Understanding ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

History of Work ,[object Object]

Simple Machines ,[object Object]

Simple Machines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Simple Machines ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mechanical Advantage ,[object Object],[object Object]

Mechanical Advantage ,[object Object],[object Object],[object Object],[object Object]

The Lever ,[object Object],[object Object],[object Object]

The 3 Classes of Levers ,[object Object]

To find the MA of a lever, divide the output force by the input force, or divide the length of the resistance arm by the length of the effort arm.

First Class Lever ,[object Object],[object Object],[object Object]

Fulcrum is between EF (effort) and RF (load) Effort moves farther than Resistance. Multiplies EF and changes its direction

Second Class Lever ,[object Object],[object Object],[object Object]

RF (load) is between fulcrum and EF Effort moves farther than Resistance. Multiplies EF, but does not change its direction

Third Class Lever ,[object Object],[object Object],[object Object]

EF is between fulcrum and RF (load) Does not multiply force Resistance moves farther than Effort. Multiplies the distance the effort force travels

Wheel and Axle ,[object Object],[object Object]

Pulley ,[object Object],[object Object],[object Object],[object Object],[object Object]

Inclined Plane ,[object Object]

Inclined Plane ,[object Object],[object Object]

Although it takes less force for car A to get to the top of the ramp, all the cars do the same amount of work. A B C

Wedge ,[object Object],[object Object]

Screw ,[object Object],[object Object]

MA of an screw can be calculated by dividing the number of turns per inch.

Efficiency ,[object Object],[object Object],[object Object],[object Object],[object Object]

Practice Questions ,[object Object],[object Object],[object Object]

Workandsimplemachines

Workandsimplemachines

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