May 21, 201412 yr Name: Introduction to Free-Fall and the Acceleration due to Gravity Category: Kinematics Date Added: 21 May 2014 - 03:52 PM Submitter: Flipping Physics Short Description: None Provided In this lesson we extend our knowledge of Uniformly Accelerated Motion to include freely falling objects. We talk about what Free-Fall means, how to work with it and how to identify and object in Free-Fall. Today I get to introduce so many of my favorites: the medicine ball, the vacuum that you can breathe and, of course, little g. Content Times: 0:22 An Example of An Object in Free-Fall 0:54 Textbook definition of a freely falling object 1:11 We have not defined a "Force" so this is how we define Free-Fall 2:07 No Air Resistance (The Vacuum that You Can Breathe!) 3:10 What does it mean to be in Free-Fall? (The Acceleration due to Gravity) 4:41 The Acceleration due to Gravity - Not on Earth 5:24 g is not constant on Earth. Very close, but not quite 5:56 Common Misconception: Objects moving upward can be freely falling 6:35 Free-Fall is Uniformly Accelerated Motion 7:27 What does the negative mean in -9.81 m/s^2? 7:57 Is "g" positive or negative? 9:01 How can "g" be not constant and we can use UAM? 10:03 Does mass effect the acceleration due to gravity? 10:47 The Review View Video
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