How Machines Do Work?

How Machines Do Work?

1. A machine is a device that makes work easier

   • INPUT FORCE
     • The force you exert on a machine
   • OUTPUT WORK
     • The machine exerts a force on you

2. A machine can make work easier by three ways :-

   • Changing direction
   • Changing distance
   • Changing force

3. Mechanical Advantage is the no. of times a machine increases the force

   • Output force over Input force

4. Mechanical Effeceincy is the output work compared to the input work

   • Output work over input work Times 100%

5. The work is wasted due to friction, there is no effeceincy that is 100%