1 / 7

Understanding Coordinate Systems in Distance Measurement

Learn about coordinate systems, origins, vectors vs. scalars, distance measurement techniques in two dimensions and position vectors.

carter-boyd
Télécharger la présentation

Understanding Coordinate Systems in Distance Measurement

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. Ch. 3 Section 2 Where and When?!

  2. Coordinate Systems • Tells you where the zero point of the variable is located and the direction in which the values measured increase • Origin • Point at which the variables have a value of zero • 100 meter dash runner?

  3. Measure in two dimensions • Need to know direction parallel to the ground and the height above the ground • Two axes • X axis  Horizontal direction (Parallel • Y axis  Vertical direction (Perpendicular) • Location of position of a given time is determined by a Position Vector • Length is proportional to the distance from the origin

  4. Negative Position • Where would a subject be in a coordinate system if its position is negative? • Left of the origin

  5. Vectors and Scalars • Scalar Quantity • Recorded measurement that only tells you the magnitude • Temperature (T), Time (t), Mass (m) • Vector Quantity • Recorded measurements that has both magnitude and direction • Represented by a letter with arrow over it • Velocity (v) • What is the vector distance from Baltic to Brookings ? • About 40 miles North

  6. Time Intervals and Displacement • Motion of a sprinter • Need a Scalar quantity and vector quantity • Time is __________ • Time interval is needed (Δt) • t0 is the starting time = 0 • t1 time at finish line = 11.5 sec • Δt = t1 – t0 • Displacement is the distance between 2 points • 100.0 meters • Δd = d1 – d0

  7. Find Distance and displacement • Total distance = 95 yds • Total displacement = 55 yds to the left

More Related