A useful video to explain Terminal Velocity.
The terminal velocity of an object is the speed at which the force of drag equals the force of gravity on that object.
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Narrated by Michael Aranda: http://www.youtube.com/michaelaranda
All video footage used via Creative Commons license. See the full videos at the links below:
http://www.youtube.com/watch?v=nbTFWgLgvDE&hd=1
http://www.youtube.com/watch?v=B35s153JxxE&hd=1
http://www.youtube.com/watch?v=nSYfQm1kHdc&hd=1
http://www.youtube.com/watch?v=Y6l_Aks8kZw&hd=1
http://www.youtube.com/watch?v=vSy-Noso0Rw&hd=1
http://www.youtube.com/watch?v=10pWfDUGcqI&hd=1
http://www.youtube.com/watch?v=Kgl2Ask22-M&hd=1
http://www.youtube.com/watch?v=CI4ZuXjRh6A&hd=1
http://www.youtube.com/watch?v=-QyxXGoYB_w&hd=1
http://www.youtube.com/watch?v=vznQxEedxDo&hd=1
http://www.youtube.com/watch?v=NH6lKiMq_v4&hd=1
Section A counts for 30% of your overall mark and is the easiest section to pick up full marks. There are about 24 experiments but many of them are minor variations on each other. Stop wasting time trying to predict which ones will come up and just learn them all.
One of the most common physics misconceptions is that an unbalanced force causes constant motion. In truth, an unbalanced force leads to changes in motion - accelerations.
This video will help you understand Newton's the laws of motion...
