Forces What is a Force? Push or Pull What does it do? Causes Motion How do we describe it? Size (magnitude) Direction
What are the 7 simple machines? Lever Inclined Plane Wedge Screw Wheel and Axle Gear Pulley
Why do we use simple machines? To make life easier! Simple Machines change forces: change the direction change the size change both
How do they work? Conservation of Energy Work and Energy are related Scientific Definition of Work Work = Force x Distance distance in direction of force
Lever
Incline Plane
Wedge
Screw
Wheel and Axle
Gears
Pulley Change Force Direction Same Force Size
Scavenger Hunt Find the Simple Machines
In Your Classroom