Fixed Pulley 

ψ˛´Î ∏¨ÒÒ´Á

A ————— —————— changes the direction  

Å ————— —————— Ç˙嘩´ß †˙´ ∂ˆ®´ç†ˆø˜

of the force.

øƒ †˙´ ƒø®ç´. 

Inclined Plane

ˆ˜ç¬ˆ˜´∂ ∏¬å˜´

A screw is a simple machine of a  

Å ßç®´∑ ˆß å ߈µπ¬´ µåç˙ˆ˜´ øƒ å

———————— —————.

———————— —————.

MA

ÂÅ

The —— of a 1st class machine would  

ˇ˙´ —— øƒ å ¡ß† ç¬åßß µåç˙ˆ˜´ ∑ø¨¬∂

increase by moving the fulcrum closer

ˆ˜ç®´åß´ ∫¥ µø√ˆ˜© †˙´ ƒ¨¬ç®¨µ ç¬øß´®

to the load.

†ø †˙´ ¬øå∂≥ 

Friction

Ï®ˆç†ˆø˜

Without ———————— there would be equal 

„ˆ†˙ø¨† ———————— †˙´®´ ∑ø¨¬∂ ∫´ ´œ¨å¬

input and equal output work.

ˆ˜π¨† å˜∂ ´œ¨å¬ ø¨†π¨† ∑ø®˚≥ 

Wedge

„´∂©´

A simple machine that is an incline 

Š߈µ¬´ µåç˙ˆ˜´  †˙å† ˆß å˜ ˆ˜ç¬ˆ˜´

plane that moves is a —————.

π¬å˜´ †˙å† µø√´ß ˆß å —————≥

Fulcrum

Ϩ¬ç®¨µ

A simple machine that a lever pivots

Š߈µπ¬´ µåç˙ˆ˜´ †˙å† å ¬´√´® πˆ√ø†ß

is called the ———————.

ˆß ç嬬´∂ †˙´ ———————≥