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Name: Experimentally Graphing Uniformly Accelerated Motion Category: Kinematics Date Added: 16 January 2015  09:38 AM Submitter: Flipping Physics Short Description: None Provided We experimentally determine the position, velocity and acceleration as a function of time for a street hockey puck that is sliding and slowing down. Is it uniformly accelerated motion? Content Times: 0:16 Experimental graph of position as a function of time 0:43 Deciding what the graph of velocity as a function of time ideally should be 1:35 Experimental graph of velocity as a function of time 2:11 Deciding what the graph of acceleration as a function of time ideally should be 2:57 Experimental graph of acceleration as a function of time Multilingual? View Video

Name: Force vs. Time on a Dynamics Cart Category: Dynamics Date Added: 03 December 2014  10:59 AM Submitter: Flipping Physics Short Description: None Provided When the forces in a free body diagram donâ€™t change students often think that Newtonâ€™s Second Law will yield the same results. This demonstration shows that is not true. This is a stepbystep analysis of tension force as a function of time for a dynamics cart in motion on a horizontal track. Content Times: 0:13 Reviewing known information 0:47 The three parts in this demonstration 1:22 Drawing the two free body diagrams 2:27 Understanding the free body diagrams 3:12 Identifying the String Direction 4:08 Finding the Tension Force during Part #1 6:06 Theoretical vs. Experimental Tension Force during Part #1 6:28 Finding the Tension Force during Part #2 7:52 Theoretical vs. Experimental Tension Force during Part #2 8:13 Finding the Maximum Acceleration during Part #3 9:37 Instantaneous vs. Average 10:21 All the graphs sequentially Multilingual? View Video

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Name: Creating a Position vs. Time Graph using Stop Motion Photography Category: Kinematics Date Added: 22 May 2014  04:26 PM Submitter: Flipping Physics Short Description: None Provided We talk about a lot of graphs in the theoretical sense. In this video we are actually going to create a position versus time graph in a real sense. By using stop motion photography and stopping a ball at various intervals while falling, we will create a position as a function of time graph. Content Times: 0:23 Identifying the Position vs. Time graph we are going to create 0:46 A single video slice of freefall 1:19 Slow the video down to 1/8th speed 1:50 Creating the graph 2:10 Proving that reality matches the graph View Video

Name: The Drop and Upward Throw of a Ball are Very Similar Category: Kinematics Date Added: 22 May 2014  04:25 PM Submitter: Flipping Physics Short Description: None Provided Previously we determined the motion graphs for dropping a ball from 2.0 meters and throwing a ball up to 2.0 meters and catching it again. In this video I show that the reverse of the drop coupled with the drop itself is the same thing as throwing the ball upward. Make sense? Okay, watch the video. Content Times: 0:13 Reviewing the previous graphs 0:25 The drop is the same as the 2nd half of the drop 0:48 Dropping the medicine ball in reverse 1:16 Bobby reviews 1:35 Links to Previous and Next Videos View Video

Name: Throwing a Ball up to 2.0 Meters & Proving the Velocity at the Top is Zero Category: Kinematics Date Added: 22 May 2014  04:23 PM Submitter: Flipping Physics Short Description: None Provided In the previous lesson we dropped a ball from 2.0 meters above the ground and now we throw one up to a height of 2.0 meters. We do this in order to understand the similarities between the two events. Oh, and of course we draw some graphs. This is an Introductory FreeFall Acceleration Problem Content Times: 0:18 Reviewing the previous lesson 0:34 Reading the new problem 1:26 Acceleration vs. time 1:59 Velocity vs. time 2:49 Position vs. time 4:16 The Velocity at the top is ZERO! 5:50 Comparing throwing the ball to dropping the ball 6:56 Finding the total change in time 7:44 Finding the velocity initial 9:47 The Review View Video

Name: Graphing the Drop of a Ball from 2.0 Meters  An Introductory FreeFall Acceleration Problem Category: Kinematics Date Added: 22 May 2014  04:22 PM Submitter: Flipping Physics Short Description: None Provided This video continues a problem we already solved involving dropping a ball from 2.0 meters. Now we determine how to draw the position, velocity and acceleration as functions of time graphs. Content Times: 0:17 Reviewing the previous lesson 1:00 Acceleration as a function of time 1:31 Velocity as a function of time 2:39 Position as a function of time 3:56 The Review View Video

Name: Walking Position, Velocity and Acceleration as a Function of Time Graphs Category: Kinematics Date Added: 21 May 2014  08:56 AM Submitter: Flipping Physics Short Description: None Provided This lesson builds on what we learned about position as a function of time graphs. We start with velocity as a function of time graphs, determine what the motion would look like and then draw position and acceleration as a function of time graphs. We use the concepts of slope and tangent line to help us build the graphs. Content Times: 0:35 What is the slope of a velocity vs. time graph? 2:30 Walking the 1st velocity vs. time example 4:17 Explaining what a constant slope is 7:11 Drawing position vs. time for the 1st example 9:08 The Magic Tangent Line Finder! (defining tangent line) 11:18 A look forward to Calculus 12:51 Drawing acceleration vs. time for the 1st example 14:35 Walking the 2nd velocity vs. time example 15:47 Drawing position vs. time for the 2nd example 17:19 Drawing acceleration vs. time for the 2nd example 18:17 Walking the 3rd velocity vs. time example 20:41 Drawing position and acceleration vs. time for the 3rd example 22:55 Ideal vs. real data View Video

Name: Understanding and Walking Position as a function of Time Graphs Category: Kinematics Date Added: 21 May 2014  08:48 AM Submitter: Flipping Physics Short Description: None Provided In this lesson we derive that the slope of a position versus time graph is velocity. We also walk through several position as a function of time graphs to understand what they mean. Content Times: 0:34 Position as a function of Time 1:04 Defining Slope 3:04 The Slope of a Position as a function of Time Graph is Velocity 3:43 Defining Position Locations on the Graph 4:37 1st Graph 6:25 2nd Graph 7:25 3rd Graph 9:18 4th Graph View Video

Name: Velocity and Speed are Different: Example Problem Category: Kinematics Date Added: 21 May 2014  08:47 AM Submitter: Flipping Physics Short Description: None Provided This example problem works shows that Velocity and Speed are different. It also illustrates that Speed is Not Velocity without direction. Content Times: 0:16 Reading the Problem 1:10 Translating the problem to physics 1:53 Part (a) Average Speed 2:57 Part ( Average Velocity 4:34 Speed is Not Velocity without direction Want Lecture Notes? Next Video: Understanding and Walking Position as a function of Time Graphs Previous Video: Average Velocity Example Problem with Three Velocities View Video

Name: Average Velocity Example Problem with Three Velocities Category: Kinematics Date Added: 21 May 2014  08:45 AM Submitter: Flipping Physics Short Description: None Provided This example problem works through finding the average velocity when we have multiple parts to the givens. It involves splitting the given information into separate parts, finding the total displacement, the total time and then the total average velocity. Content Times: 0:23 Reading the Problem 0:56 Translating the problem to physics 1:47 Splitting the givens into three parts 3:58 A plea to slow down when solving problems 5:13 Putting the givens in to a table 5:53 Beginning to solve the problem 6:59 Solving for the individual displacements 8:39 Finding the total displacement 9:33 Finding the total average velocity 10:58 A incorrect way to solve for average velocity 12:20 Outtakes View Video

What is Pavel time? Pavel time is the time right before a deadline when actual work gets done. How does this relate to physics? It relates specifically to Albert Einstein's theory of relativity. Part of the theory of relativity states that measurements of various quantities are relative to the velocities of observers. In particular, space and time can dilate. So, in real life, as an object approaches the speed of light, it gets squished and time slows down for the object. How does this relate to Pavel time? In my theory of relativity, as more work gets done more quickly, time slows down and allows me to finish whatever assignment I have before the deadline.
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