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Teacher Simple Machine Powerpoint
- Added: May, 12th 2011
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- Name: susanna
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- Simple Machines Wedge Inclined Plane Screw Wheel and Axle Lever Pulley
- Bellwork: Can you name one simple machine you used last night before you went to bed? What did you use it for? Why did you use it?
- Bellwork: Give one example of a…. lever pulley wheel axle inclined plane wedge screw
- Objective: You will describe the six different simple machines (inclined plane, pulley, wedge, screw, lever and wheel & axle and give examples of each one.
- Simple machines are useful because they can make a physical job easier by changing the magnitude or the direction of the force exerted to do work. Why are they Useful?
- Have you ever tried to unscrew a nut, bolt, or screw from something with your bare hands and discovered that it was just too tight to loosen even if you had a good grip? Example
- What Did You Do?
- You got the proper tool, such as a screw driver or wrench, and unscrewed it!
- Why is it that it's so easy to unscrew with a tool when you can't with your bare hands?
- The wrench and screw driver are examples of a wheel and axle, where the screw or bolt is the axle and the handle is the wheel. The tool makes the job easier by changing the amount of the force you exert. Axle Wheel
- All of the simple machines can be used for thousands of jobs from lifting a 500-pound weight to making a boat go. The reason why these machines are so special is because they make difficult tasks much easier.
- Let's Take a Look at Them
- Levers Fulcrum Lever Load Click Here to Learn More
- Inclined Plane Click on the dude to learn more.
- Screw A screw is an inclined plane wrapped around a post. Click on the light bulb to learn more.
- Wedge Two inclined planes make a wedge. Try to catch the saw to learn more.
- Wheel and Axle Axle Wheel Click on the windmill to learn more.
- Pulleys Wheel Rope This box is easier to lift because of the pulley. Click on it to learn more.
- Are you ready for a quiz on the Internet? Click above
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