2. Gears By: Student Name Class: 8D Date: April, 30, 2003

3. A Gear is a rotating wheel-like device with teeth around the rim. The teeth of each gear connect with each other causing other gears to rotate. Definition

4. Gears are used a lot in everyday life. Some examples of using the gears would be bicycles, different machines in factories and tractors. Everyday Use

5. Mechanical Advantage MA=Radius of effort load Radius of a load gear

6. On a bike the radius of the effort gear is 30cm and the radius of the load gear is 5 cm what is the mechanical advantage???? MA Problem

7. The mechanical advantage is is 6. Solution

8. http://www.roadraceengineering.com /rreimages/evo5/evo5trans-gears.jpg Webography http://www.finches-ski.co.uk/images/bikes.jpg http://www2002.org/CDROM/refereed/382/gears.gif

9. The End I hope you enjoyed my show and learned something interesting.