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| GEARS AND GEAR SYSTEMS | |
| V. Ryan © 2010-16 | |
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| PDF FILE - CLICK HERE FOR PRINTABLE VERSION OF EXERCISE SHOWN BELOW | |
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Gears can be found in many machines in a workshop or factory and at home they are often an important part of mechanical devices. In a car the gears help the driver to increase and decrease speed as he/she changes the gears with the gear stick. |
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| Can you name and describe a mechanical device with gears, that you or your friends use ? | |
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The gears shown below are called spur gears because they mesh together. Gear A is called the driver because this is turned by a motor. As gear A turns it meshes with gear B and it begins to turn as well. Gear B is called the driven gear. |
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| Gear A has
30 teeth and gear B has 20 teeth. If gear A turns one revolution, how
many times will gear B turn ? Which gear revolves the fastest ? |
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