logging in or signing up Velocity and Acceleration PowerPoint abohall Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 12815 Category: Education License: All Rights Reserved Like it (19) Dislike it (0) Added: July 28, 2008 This Presentation is Public Favorites: 14 Presentation Description No description available. Comments Posting comment... By: adnankhantomani (7 month(s) ago) Kindly allow me to download Electric circuit ppt to add it to the introduction of my course. Thanks email@example.com Saving..... Post Reply Close Saving..... Edit Comment Close By: jen1073 (19 month(s) ago) o Saving..... Post Reply Close Saving..... Edit Comment Close By: oyebaby (22 month(s) ago) oye Saving..... Post Reply Close Saving..... Edit Comment Close By: MissBall007 (25 month(s) ago) Can you please email this to me? Saving..... Post Reply Close Saving..... Edit Comment Close By: nidhiviswanathan (26 month(s) ago) can you please send this presentation .very simple to understand Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Velocity and Acceleration : Velocity and Acceleration Motion : Motion Reference point- stationary object that helps you determine how far something moved Distance- how far an object moves Unit- meter (m) Displacement- distance and direction of an object’s change in position from the starting point Speed – distance traveled per unit time s = d/t Speed = distance / time Unit- m/s Speed : Speed Average speed- total distance divided by total time Speed : Speed Instantaneous speed- speed at that moment Like your speedometer Constant speed- speed doesn’t change Distance-time graph- has time on the x-axis and distance on the y-axis Slope is speed Steeper line = faster Flat line = stopped Negative slope = moving backwards Distance- Time Graph : Distance- Time Graph Velocity : Velocity If you know that a hurricane is moving at 20 km/h, and it is 100 km away from you, do you need to be concerned? Maybe- you can’t tell- it might be headed toward you or away from you!! Velocity – Speed and direction Car one is headed east at 50 mph. Car two is headed west at 50 mph. Do they have the same speed? The same velocity? Speed – yes Velocity - no Relative Motion : Relative Motion Are you moving if you are sitting 100% still in your chair?? YES! The earth is moving and you are on the earth, so you are moving relative to the other planets, the sun, etc. NO! Relative to the floor, you are not moving It all depends on your frame of reference Relative motion – motion depends on your frame of reference http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=140 Acceleration : Acceleration Acceleration- rate of change in velocity Occurs when speed or direction changes Negative acceleration- when something slows down Positive acceleration- when something speeds up Change in velocity / change in time = acceleration Acceleration = Force / mass Units m/s2 Acceleration due to gravity = 9.8 m/s2 Velocity- Time Graph : Velocity- Time Graph Velocity- Time graph : Velocity- Time graph Slope = acceleration Flat slope = constant speed Positive slope = sleeping up Negative slope = slowing down Design your own experiment : Design your own experiment Choose one option: You have 2 toy cars. Which one will have the greatest velocity with the same force applied to both? You have 2 toy cars. Which one will have the greatest acceleration with the same force applied to both? Or do both for extra credit! You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.