Download presentation

1
**Gears ‘n stuff: Angular Velocity**

How fast something rotates is called Angular Velocity (). Units of angular velocity include revolutions per minute (RPM) and radians per second. In this box, if the little gear has 8 teeth and the big gear has 24, how many revolutions will the big gear make for each revolution of the little one? If both motors turn at the same rate, which gear turns faster (with higher angular velocity), A or B? If gear 1 is mated with gear 2, then N11 = N22 A B

2
Gears ‘n stuff: Torque A twisting force, or a force applied on a lever arm, is called torque (). Units of torque include foot pounds, newton meters, etc. Which would have more torque, A or B? (hint: think about a bicycle…) If gear 1 is mated with gear 2, then 11 = 22 You can use gears to trade torque for angular velocity. This is really useful. A B

3
**Gears ‘n stuff: Using gears**

The motor has some maximum power output – (for NXT, it's basically the rate at which it can drain the battery.) You can use that for high torque with low angular velocity, or high angular velocity with low torque. The transmission of a bike or car lets you switch back and forth -- “low gear” for power, “high gear” for speed. talk about lever, opening a door – easier to push at outside edge but it opens more slowly. . .

4
Using NXT Gears

Similar presentations

Presentation is loading. Please wait....

OK

Group Members 2008-EP EP EP EP-49.

Group Members 2008-EP EP EP EP-49.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on artificial intelligence download Ppt on boilers operations analyst Ppt on life of gautama buddha Ppt on traffic light controller project Ppt on domestic robots for sale Ppt on buddhism and jainism architecture Ppt on business environment nature concept and significance of colors Ppt on resources and development class 10 cbse result Ppt on 10 famous personalities of india Ppt on phonetic transcription translator