Air Resistance

  • Due Sep 29, 2016 at 8:59am
  • Points 2
  • Questions 2
  • Available until Sep 29, 2016 at 8:59am
  • Time Limit None
  • Allowed Attempts Unlimited

Instructions

Watch the following video tutorial on the force of air resistance and then take the quiz.

http://youtu.be/sXVaaS72VXk

[PDF of Slides]

Summary:

• Force of air resistance on a moving object increases with the object’s speed and size.
• Because air resistance is not a constant force, falling objects don’t have a constant acceleration when air resistance is significant.
• Air resistance force is noticeable if it’s at least comparable to an object’s weight.
• When the upward force of air resistance balances the downward force of gravity the falling motion transitions into uniform motion (i.e., constant speed).
Have a question? Go here.

 

Optional: Watch these videos of the "Feather and Coin" demonstration:

http://www.youtube.com/watch?v=AV-qyDnZx0A

http://youtu.be/E43-CfukEgs?t=2m43s

 

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