Wednesday, September 25, 2013

PHYSICS - SIMPLE MACHINES #3

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STUDY JAMS - SIMPLE MACHINES

SIMPLE MACHINE - MATCHING



Simple Machines
More educational videos on Simple Machines at NeoK12.com  



The Six Simple Machines


 Simple machines are tools that make work easier.  They have few or no moving parts.  These machines use energy to work.  

Compound machines have two or more simple machines working together to make work easier.
In science, work is defined as a force acting on an object to move it across a distance. 

  • Pushing, pulling, and lifting are common forms of work. Furniture movers do work when they move boxes. Gardeners do work when they pull weeds. Children do work when they go up and down on a see-saw. Machines make their work easier. The furniture movers use a ramp to slide boxes into a truck. The gardeners use a hand shovel to help break through the weeds. The children use a see-saw to go up and down. The ramp, the shovel, and the see-saw are simple machines.


Lever


Inclined Plane

Wheel and Axle


Screw


Wedge


Pulley