Answer the following:
1. What are simple machines? _______________________________________________
2. What are the different kinds of simple machines? _______________________________
3. Which of them are found in school? _________________________________________
How about at home? _____________________________________________________
4. Are simple machines important? Why? _______________________________________
1. What are simple machines? _______________________________________________
2. What are the different kinds of simple machines? _______________________________
3. Which of them are found in school? _________________________________________
How about at home? _____________________________________________________
4. Are simple machines important? Why? _______________________________________
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Answer:
1)Simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. ... The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.
2)The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.
3)wheel and axle, pulley, inclined plane, screw, wedge and lever.
4)Pulley: blinds, garage doors, flag poles. Lever: see saw, pry bar, lever action door latches. Wedge: scissors, screw, a knife.
5)Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever.
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