Air Resistance: Difference between revisions
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You may have noticed that moving objects quickly through any substance is harder than moving objects slowly through a substance. This is due to the air resistance. The magnitude of air resistance directly correlates to the speed of the object. Another | You may have noticed that moving objects quickly through any substance is harder than moving objects slowly through a substance. This is due to the air resistance. The magnitude of air resistance directly correlates to the speed of the object. Another aspect that impacts air resistance is the cross sectional area of a system. An example is a skydiver with an open parachute has more air resistance than a closed parachute. Air resistance force has an effect on the shape of an object as well. An example of this is a coffee filter, which is blunt object. A ball with the same cross sectional area as a coffee filter has less air resistance. The last effect that impacts air resistance is air density. An example is at higher altitudes (less air density) where there is less air resistance. | ||
===A Mathematical Model=== | ===A Mathematical Model=== | ||
The four factors that impact air resistance are cross sectional area, shape, air density, and speed. As you can see in the formula below, these four factors are included in the formula for the air resistance. | |||
[[File:Formula.png]] | [[File:Formula.png]] | ||
Revision as of 23:51, 29 November 2015
This page is in progress by Jayanth Chintham (jchintham3). 11/29/15
The Main Idea
The forces acting opposite to the direction of motion are called air resistance. Another term for this restraining effect is called "drag." Air resistance is an example of energy dissipation.
You may have noticed that moving objects quickly through any substance is harder than moving objects slowly through a substance. This is due to the air resistance. The magnitude of air resistance directly correlates to the speed of the object. Another aspect that impacts air resistance is the cross sectional area of a system. An example is a skydiver with an open parachute has more air resistance than a closed parachute. Air resistance force has an effect on the shape of an object as well. An example of this is a coffee filter, which is blunt object. A ball with the same cross sectional area as a coffee filter has less air resistance. The last effect that impacts air resistance is air density. An example is at higher altitudes (less air density) where there is less air resistance.
A Mathematical Model
The four factors that impact air resistance are cross sectional area, shape, air density, and speed. As you can see in the formula below, these four factors are included in the formula for the air resistance.
A Computational Model
[Air Resistance Using Glowscript][1]
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