# Essay about Writing Lab Reports and How Gear Ratios Work

Words: 1085
Pages: 5

Lab Report Below is a walkthrough on how your Lab report should be written. This paper should be 2­3 pages; 1 page should be data. Each section (except the title) should be titled! Title

If you used any outside source to do your project (used a journal to research it, or referenced some book) be sure to note that in a bibliography and cite it in MLA format in your paper.
Improper citation could lead to a zero or plagiarism violation consequences.

How Gear Ratios Work by Marshall Brain

Yo u see gears in just about everything that has spinning parts. Car engines and transmissions contain lots of gears. If you ever open up a VCR and look inside, you will see it is full of gears. Wind­up, grandfather and pendulum clocks contain plenty of gears, especially if they have bells or chimes. You probably have a power meter on the side of your house, and if it has a see­through cover you can see that it contains 10 or 15 gears. Gears are everywhere where there are engines and motors producing rotational motion.
In this edition of HowStuffWorks, you will learn about gear ratios and gear trains so you'll understand what all of these different gears are doing. You might also want to read How
Gears Work to find out more about different kinds of gears and their uses or you can learn more about gear ratios by visiting our gear ratio chart.

Putting Gears to Work
Gears are generally used for one of four different reasons:
1. To reverse the direction of rotation
2. To increase or decrease the speed of rotation
3. To move rotational motion to a different axis
4. To keep the rotation of two axes synchronized

You can see effects 1, 2 and 3 in the figure above. In this figure, you can see that the two gears are rotating in opposite directions, that the smaller gear is spinning twice as fast as the larger gear, and that the axis of rotation of the smaller gear is to the right of the axis of rotation of the larger gear.
The fact that one gear is spinning