jueves, 19 de octubre de 2017

Simple Machines for Kids: Science and Engineering for Children - FreeSchool


Simple machines have been helping people to do work for thousands of years!
The lever, wheel and axle, pulley, inclined plane, wedge, and screw each have
a job to do. Some amplify force, some change its direction, and some reduce
friction or create mechanical advantage.

ACTIVITIES
1. What are the 3 simple machines Archimedes identified more than 2000 years ago?
2. Why is the lever very useful ?
3. Archimes said ...........................................................
4. When was the inclined plane identified?
5. How many types of simple machines are there?
6. The fix support of a lever is called ......
7. Examples of levers are ........ .............. ...............
8. Wheels and axles are used in machines such as....... ....... ........ ............... ...................
9. Why is it easier the work if you use multiple pulleys?......................................................
10. PUlleys are used to ....................... ....................... ...............................
11. What is an inclined plane?
12. Examples of incline planes: .............. ............................
13. A wedge is .................................................................................................................
14. Examples of wedges are ........................... .............................. ......................
15. A screw is...................................................... Examples....................................

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