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Instantaneous Speed

Instantaneous Speed. 10.7. Instantaneous Speed. What is it? The speed at a particular time. Any object moving at a constant speed (where distance is in equal increments), has any instantaneous speed equal to that of the constant speed (BLM 10.7 graphs 1-2). BLM 10.7 Graphs 1-2.

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Instantaneous Speed

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  1. Instantaneous Speed 10.7

  2. Instantaneous Speed What is it? The speed at a particular time. Any object moving at a constant speed (where distance is in equal increments), has any instantaneous speed equal to that of the constant speed (BLM 10.7 graphs 1-2)

  3. BLM 10.7 Graphs 1-2

  4. Any object moving at a non-constant speed (where distance increments vary) has different instantaneous speeds depending on the instant in time. (BLM 10.7 graph 3)

  5. From a distance-time graph, with non-constant speed, the instantaneous speed must be calculated from the slope of the tangent at any instant in time. (BLM 10.7 graph 4) Tangent: a straight line which touches a curve at one particular point.

  6. From a speed-time graph, with non-constant speed, the instantaneous speed can be read directly from the axis at any instant in time. (BLM 10.7 graph 5)

  7. Calculating the average speed of a non-constant distance-time graphs is done through slope calculations of the line which connects the start and finish points. Calculating the average speed of a non-constant speed-time graph is difficult and will not be covered until Physics 11. • Practice Worksheet • Textbook Questions: page 400-401; 1, 4, 6 ab, 7, 8 (With BLM 24)

  8. Practice worksheet

  9. Practice worksheet

  10. P 400-1 #6

  11. P 400-1 #7

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