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How would a crash look from different points of view and how would you describe its location, orientation, and position?
How would a crash look from different points of view and how would you describe its location, orientation, and position?
Concept: To describe motion, you need to know a reference point, distance, and direction of travel.
Guiding Question: How do we decide when an object is moving?
Without knowing certain information, you cannot tell if an object is in motion. One must have a reference point and a direction to be able to describe the motion of something.
How would you demonstrate how far or fast someone travels in a certain amount of time? Can you make predictions about a crash?
How would you demonstrate how far or fast someone travels in a certain amount of time? Can you make predictions about a crash?
Concept: How to measure and graph speed.
Guiding Question: How can speed be calculated and visually represented?
On a distance vs. time graph, the slope of the line will give the speed of the object.
If you were going to draw a line on a distance vs. time graph for the truck, then what would the line look like? Is the truck accelerating?
If you were going to draw a line on a distance vs. time graph for the truck, then what would the line look like? Is the truck accelerating?
Concept: Speed is the rate of change (ratio) between distance (D) and time (T).
Guiding Question: What can D/T graphs tell us about the motion of an object?
We can use graphing tools, such as Vernier Graphical Analysis, to reveal information about an object’s motion.
Introduction
Introduction
Does the truck crash into the bollard (pole) or does the bollard crash into the truck? How do you know?
Why does the cat look bigger than the mountain?
What observations can you make about the skateboard and the skate park?
Usain Bolt Rio 2016 100m Dash
Wind up toy race mayhem Brainstorm
The REAL meaning of miles per hour
NOTES / reading resources
NOTES / reading resources
Log into your Hart District account to view the notes and articles
Google Map of Placerita
Speed and Velocity
SIMULATIONS
SIMULATIONS
Ball Toss from the skater's view
Tossing a ball while another is watching.
Frames of Reference Simulation
Frame of Reference on a Train
Both Frame of References
Graphing Game
LABS
LABS
Lab: How do you measure speed? Use the videos below to help you complete the lab
Slow Speed Ball Roll
Slow Ball Roll.MOVMedium Speed Ball Roll
Medium Ball Roll.MOVFast Speed Ball Roll
Fast Ball Roll.MOVLab: Motion and Graphing of Data of a battery powered car Use the videos and data below to help you complete the lab.
Low Mass Car
Constart Car Lab-Test1.MOVHigh Mass Car
Constart Car Lab-Test2 with MASS.MOVLab: Acceleration Using an Accelerometer Use the videos and measurements below to help you complete the lab
Speeding Up
Speeding Up.movNot Moving
Accelerometer - Not Moving.movSlowing Down
Slowing Down.movConstant Speed
Constant Speed.movTurning
Turning Left.movVideoS
VideoS
Vocabulary
Vocabulary
- motion - a change in the position of an object over time. An object is moving if its position is changing in comparison to a reference point.
- position - the location of an object at a moment in time
- reference point - a place or object used for comparison to determine if something is in motion
- distance - The length of a path between two points; the amount of space between two things
- frame of reference - a system of objects that are not moving with respect to one another
- relative motion - the change in position of one object compared to the position of another
- speed - the rate at which something moves
- slope - rate of change of a line; the steepness of a line on a graph
- velocity - speed in a direction (such as north, south, east, west)
- acceleration - speeding up, slowing down, or changing directions
Other words that will help you:
- average speed - total distance traveled divided by the total time it took to travel that distance
- constant speed - When the speed of an object remains the same for a specific amount of time - it does not increase or decrease
- variable speed - Speed that changes over time
- time - seconds, minutes, hours
- Y-Axis - Distance
- X-Axis - Time
- Origin - the point or place where something begins
- stopped - there is no change in distance over time
Review
Review
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