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What is a Machine?. Machine. Product. Materials. Object. Output. Input. What is a Machine?. Example - TV. Electricity. Picture. TV. Sound. Signal. Object. Output. Input. What is a Machine?. Simple Machine. Simple Machine . Force. Force. Object. Output. Input.
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What is a Machine? Machine Product Materials Object Output Input
What is a Machine? Example - TV Electricity Picture TV Sound Signal Object Output Input
What is a Machine? Simple Machine Simple Machine Force Force Object Output Input
Forces What is a Force? Push or Pull What does it do? Causes Motion How do we describe it? Size (magnitude) Direction
Why do we use simple machines? • To make life easier! • Simple Machines change forces: change the direction change the size change both
What are the 6 simple machines? • Inclined Plane Wedge Screw • Lever • Wheel and Axle Pulley
How do simple machines work? Conserve Energy Applied Resultant Force x Distance = Force x Distance force x Distance = Force x Distance
Incline Plane Change Force Direction Change Force Size
Wedge Change Force Direction Change Force Size
Screw Change Force Direction Change Force Size
Lever Change Force Direction Change Force Size Resulting Force X Distance = Applied Force X Distance
Wheel and Axle Same Direction Change Force Size Resultant Force X Wheel Radius = Applied Force X Axle Radius
Gears Change Force Direction Change Force Size
Pulley Change Force Direction Same Force Size