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Description
Flashcards by Meriam Hammar, updated more than 1 year ago
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Created by Meriam Hammar
almost 8 years ago
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| Question | Answer |
| Wheels | The center of a WHEEL is called its AXLE and the outside of a wheel is its RIM. |
| Pulleys | Sometimes it is necessary to change the directions of a force. |
| Gears | In some older-style machines such as lathes, one wheel is connected to another wheel by a rubber belt. |
| Gears as force multipliers | If the driving is smaller than the driven gear, then the combination acts as a force multiplier. |
| Gears as speed multipliers | If the driving gear is larger than the driven gear then the combination acts as a speed multiplier. |
| Using gears on bicycle | Gears used in bicycle are called SPROCKETS. |
| Axle | Shaft on which a wheel rotates. |
| Block and tackle | A system of two or more pulleys using rope or cable to lift heavy objects. |
| Driven gear | The gear that receives force from a driving gear. |
| Driving gear | The gear that supplies force to another gear. |
| Gear ratio | Ratio of the number of teeth on the driving gear and the number of teeth on a driven gear. |
| Gear train | A system of interconnected gears. |
| Gears | A wheel with teeth used to turn another gear wheel. |
| Pulley | A wheel with a groove over which a rope or cable can slide, used to change the direction of a force. |
| Rim | Outer edge of a wheel. |
| Sprocket | A toothed wheel used to link onto a chain on a bicycle. |
| Wheel | Type od a lever with an axle acting as its fulcrum. |
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