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Gears

Cars. Gears. Gears. Why is it easier to hammer in a nail than take it out?. Starter: Think!!! How does the size of a wheel affect the number of turns???. Gears.

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Gears

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  1. Cars Gears

  2. Gears Why is it easier to hammer in a nail than take it out? Starter: Think!!! How does the size of a wheel affect the number of turns???

  3. Gears Wheels with teeth or cogs on them are called gear wheels. The teeth of one wheel fit into the teeth of the other, so that they can transfer the force from one wheel to the other. A gear is a device used to change motion. For example, a gear is used on a bicycle or in a car to allow the bicycle or car to speed up or slow down.

  4. Gears Driving gear The large gear wheel. It supplies the force to turn the small gear wheel. Driven gear The small wheel

  5. Gearing up. The small wheel will make far more turns for each turn of the large wheel. A propeller attached to the small wheel will therefore turn quickly. This is an example of gearing up. Kitchen hand-beaters, hand drills and bicycles have this arrangement of gears, so that the beaters, drill bits and rear wheel can spin quickly.

  6. Gearing Down Now suppose a small gear wheel is the driving gear and is attached to a large wheel. The large wheel will turn slowly compared to the small driving gear. This is called gearing down. Anything attached to the large wheel will turn slowly too. Rotating displays in exhibitions use this arrangement of gears so that the goods on display move very slowly.

  7. Gears Why is it easier to hammer in a nail than take it out? Starter: Think!!! How does the size of a wheel affect the number of turns???

  8. Gears on a Bike Thinking Question? How do gears on a bike work? How would your ride be harder if your gears were broken??

  9. Gears on a Bike Bicycles have a large gear wheel attached to the pedals and a small gear wheel attached to the rear wheel. The two gear wheels are connected by a chain. When you push down on the pedals, the pedals turn and the large gear wheel attached to the pedals turns too. This gear wheel is the driving gear. The smaller gear wheel attached to the rear wheel is the driven gear

  10. Gears on a Bike On bicycles with gears you can select different sized gear wheels. If you are going up a hill, you select the largest rear gear wheel. This is low gear and it means you require less effort to get you and the bike up the hill. So a bicycle in low gear gives the rider a force advantage. On level ground, you select the smallest rear gear wheel. This is high gear and it allows you to cover more distance. So a bicycle in high gear gives the rider a speed–distance advantage. The bike can reach a higher speed and cover more distance.

  11. What about your car? Is it manual or automatic? What's the difference? How many gears does it have? Why? Gears in your Car

  12. Gears Why is it easier to hammer in a nail than take it out? Review Starter: Think!!! How does the size of a wheel affect the number of turns???

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