MOTION GRAPHS
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Transcript of MOTION GRAPHS
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MOTION GRAPHSCREATING AND INTERPRETING
GRAPHS
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WHAT DO WE KNOW
•On the paper provided, write down everything you know about graphs and graphing
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Components of the GraphReview
•X- axis and Y-axis•Scale and Variables•Title•How do you determine•Scale•Maximize the graph paper
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Interpreting GraphsThe purpose of a graph is to
show a RELATIONSHIP between 2 variables
1.Positive Relationships:•As one variable increases, so
does the other•Conversely, as one variable
decreases, so does the other.
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On your paper
DRAW AN X AND Y AXIS AND THEN PLOT A LINE THAT SHOWS
A POSITIVE RELATIONSHIP
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Positive Relationships
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Interpreting Graphs
2. Negative or Inverse Relationships:•As one variable increases, the other decreases•Conversely, as one variable decreases the other increases.
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On your paper
DRAW AN X AND Y AXIS AND THEN PLOT A LINE THAT SHOWS A NEGATIVE/INVERSE RELATIONSHIP
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Negative Relationships
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Line of Best FitLine of Best Fit: Straight line drawn through linear data. • The line does not necessarily connect the
data points but is drawn through the majority of points, with an equal number of points above and below the line.
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MOTION GRAPHSGraphs that deal with motion will have the following variables on their X and Y axis:Distance/PositionSpeedTime
Distance and time will be used to calculate speed
Speed and time will give us acceleration
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Speed andAcceleration
•Speed: How fast you are going
•Acceleration: A rate of change in speed. Are you speeding up or slowing down?
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Distance, Time and Speed• Distance is the amount of space
BETWEEN 2 objects.• Time is an interval that has a
beginning and an end• Speed is the distance an object
travels in a specific amount of time.• Constant speed is the same
distance is traveled every second or time interval
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Relationship Speed is directly related to
distance traveled
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Relationship Speed is indirectly/inversely
related to the amount of time
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Position-Time Graphs
On your paper explain how to find the speed of a car using a
position-time graph
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Calculate the Speed….
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Constant Speed• Position vs Time graphs will have a
straight line when the object is traveling at a constant speed.
Slope = Speed
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Changing Speed• A position vs time graph will
have a curve when the object is traveling at a changing speed, steepness of the curve will indicate just how fast object is changing speed.
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Calculating Speedv = d/tv = velocity or speed of an objectd = distance traveledt = time that it took to travel that particular distanceUnits for speed are distance per unit of time -or- m/sec -or- km/hr
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Solve these problems
Use your notes to help you
• If a car travels 40 km in a time period of 2 minutes, what is its speed?• If a car travels 60 km at 20 km/hr, how long does it take?
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What is the relationship between speed and time
(use your notes!)
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Speed-Time Graphs for Acceleration
• Rate of change in an object’s speed• Slope = Acceleration•When you plot
speed vs. time, you now have the acceleration of an object.
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•Describe the difference between speed and
acceleration
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Distance from Speed vs. Time Graph
•Distance is equal to speed x time
•The area of a graph represents speed x time
•Therefore the area below the line of best fit is the distance traveled
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Draw a speed-time graph that shows an object that is moving at a constant speed
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Sample Data for 10 Meter Race:
Animal
Time/Trial 1
Speed
Time/Trial 2
Speed
Time/Trial 3
Speed
AverageSpeedm/sec.
Dog 6 second
6 7
Cat 8 second
7 8
Turtle 20 second
18 19
Mouse
15 second
14 15
Lizard 30 second
32 31
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Sample Graph
1.What will be on the X-Axis?
2.What will be on the Y-Axis?
3.Name the 3 different types of graphs and then state which you will make for this set of data.