What+is+Pressure?

**By** **Frank** **Table of Contents**
 * 1)  Pressure Description
 * 2) Pressure and Area
 * 3) Calculating Pressure
 * 4) ToonDoo
 * 5) Video
 * 6) Works Cited

Pressure Description **Pressure stems from the word press. The word press basically means a force that is "put" on a suface of an object. The Earth's gravity "pushes" you toward the Earth with a force that is the same as your weight. This gravity causes your feet to put pressure on the surface of the Earth because of the size of your feet. **

Pressure and Area **Pressure and force are related because pressure equals the amount of force applied over a given area. The pressure on an object decreases as the area over which the force is applied increases. Less pressure is applied on an object if the force is distributed on a larger area. For instance, if you wear "snow boots," in the snow, you will not cover as much area as if you wore"snow shoes". This means, that when you are wearing snow shoes you are not exerting as much pressure on the ground as with snow boots because of the larger boot area. **

Calculating Pressure **In order to calculate pressure, you need to use the formula: ****Pressure = Force/Area. Pressure is the amout of force applied on a given area. The SI Unit of pressure is measured in the pascal. A pascal (1 Pa) is a newton's force that is exerted on an objects area that is measured in one square meter (1 N/m2). **

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 * Works Cited**

Jones, T. Griffith. //Prentice Hall Science// //Explorer: Motion, Forces, and Energy//. Upper Saddle River, NY: Pearson, 2009. Print.

Rinehart, Holt. //Holt Science & Technology:////Physical Science//. Holt Rinehart & Winston, 2003. Print.

"Toondoo." __toondoo.com__. 2010 Jambav.5 January 2011 http://www.toondoo.com

"Calculating Pressure." Xtranormal. Web. 11 Jan 2011 http://www.xtranormal.com