1 / 9

Measuring Motion

Measuring Motion. January 15, 2013. Motion. Motion is an object’s change in position relative to a reference point. Reference Points. The object that appear to stay in place is a reference point . One can also describe an object’s motion with a reference direction .

fadhila
Download Presentation

Measuring Motion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Measuring Motion January 15, 2013

  2. Motion • Motion is an object’s change in position relative to a reference point.

  3. Reference Points • The object that appear to stay in place is a reference point. • One can also describe an object’s motion with a reference direction. • Ex: Airplanes, Hot-air balloons.

  4. Speed • Speed is the distance traveled by an object divided by the time taken to travel. • Airplane seen in 10 s intervals • A 500 m distance for each interval • (500 m) / (10 s), or 50 m/s • SI unit for speed: Meter per second (m/s)

  5. Determining Average Speed • Used because objects most of the time do not travel at a constant speed. Average Speed = total distance total time

  6. Practice Problems • What is your average speed if you take 0.5 h to walk 4,000 m? • What are you solving for? • Next, look at the values and units. • (4,000) (.5) = 8,000 m/h

  7. Recognizing Speed on a Graph A constant straight line means the object moves at constant speed. The steeper the graph, the faster the motion. A horizontal line means the object is not changing it’s position. (It’s Not Moving!) A line curving upwards shows an increase in speed; getting steeper means it is accelerating.

  8. Guess the Graph

  9. Check Your Answers

More Related