UNIFORM MOTION

1
UNIFORM MOTION

• Uniform motion can be described by a simple
  mathematical ratio.
• Both distance and time measurements are required
  to describe uniform motion.

2
Describing Uniform Motion

• Oddly enough uniform motion does not necessarily
  have any feelof motion at all. (How could this
  be so?)
• Mathematically uniform motion is
• A RATIO V?d/?t. This idea includes the slope
  of the velocity graph that is, the ratio of ?d?t
  
• change in distance. . . . . . . ?d d f - d i
  (RISE)
• change in time. . . .. . . . . . . ?t t f - t
  i (RUN)
• A VECTOR quantity having both
• a magnitude and
• a direction.

3
Measuring UNIFORM Motion

• Time and distance must both be measured. ( In the
  example at the right the data table is designed
  and prepared for the drawing of two graphs.)
• Distance /time graph (d, t)
• Acceleration graph (V, t)
• What would these graphs look like? The first
  graph at the right is uniform motion.
• How is this different from non uniform motion?(
  2nd graph-click)

4
The Language of Motion

• -1- Make a Chart (all on one page landscape
  orientation ) for the terms on p296. Use the
  center -page picture to help develop
  comprehension..
• -2- Check your Understanding by doing the
  questions 1-5 on p304
• -3- Read about VECTORS pp300 301 (Make content
  notes.)
• Develop your understanding by doing Heading for
  Home pp302 303)

5
Scientific Measurement

• This skill will be developed on a needs basis.
  The following resources will help develop skills
  in recording and interpreting scientific
  measurements
• Power point Scientific Measurement
• Related practice worksheets.
• Related practical activities.

6
EXPLORING Uniform Motion

• The worksheet at the right allows you to change
  the variables of
• distance, d / time, t
• The table recalculates and redraws the velocity
  and acceleration graphs for the new variables
  entered.
• Do the Data Studio Workbooks matchgraph1.ds-matc
  hgraph4.ds They will help you get a feel for
  uniform motion as they relate movement to the
  shape of a graph.

7
Consolidation 1 Uniform Motion

• 1- WALKING IN UNIFORM MOTION p308-309 Use the
  table provided measure data for walking in
  uniform motion. Make measurements for 12m /12s
  in equal time intervals. Then complete the
  graphs. DO Q1-7 p308-309
• Review Precision pp299-300
• 2- Read p305 9.3 Measuring Motion with
  TICKER-TAPE
• Do Questions 3-6 p314.
• Do two graphs for comparison one for uniform one
  for non-uniform motion. Use about 1.6m of tape.

8
Motion PROJECT

• -1-DESIGN AND BUILD A MOUSETRAP CAR.
• The design parameters and approved materials list
  
• are in the handout. http//scifair.ednet.ns.ca/CKC
  LS/isci10/mtc02/mywebquest/index.htm
• Completion date for the car with 10 m trial run
  __________
• -2- PROJECT REPORT
• Modify for (2.5-10 m) run if necessary and
  collect data for the cars motion
  characteristics. ( depending on how the motion is
  measured, ticker-tape, stopwatch, sonic ranger .
  . . )
• Completion date for the project report.
  __________

9
Consolidation REVIEW Uniform Motion

• -1-Complete the two tasks, EXPLORING Uniform
  Motion
• Spreadsheet simulation ?d/?t, ?v/?t
• Qualitative simulation
• Quantitative simulation
• -2- Complete the quiz on shapes and trends of
  typical motion graphs for uniform and non-uniform
  motion.

10
THE END

• Last modified, January 2002