Group+10

A WebQuest for 8th Grade Science Designed by  Sophia Oller Ana Rosa Malagon Sanchez
 * Faster & Faster!**



 **Introduction** You have all been in a moving vehicle at some point in your life: a car, a bus, a plane, etc. These travel at different speeds. A faster speed means you get to where you are going in less time, and a slower speed means it will take longer. Let's investigate how distance, speed, and acceleration are connected!

 **The Task** How do we determine how fast a vehicle is moving? You will look at how the distance you travel and the time it takes to get there can help you find the average speed of the car. You will also learn about acceleration and how you can find the acceleration if you have a graph of the speed of the car.

 **The Process**
 * 1) First you'll be assigned to a team of 3 students.
 * 2) Next, learn about how distance and time travelled are related to average speed. Watch this video: [|Average Speed]
 * 3) Learn about how speed (velocity) and acceleration are related. Watch the video at this link: [|Velocity and Acceleration]
 * 4) How can distance, speed, and acceleration be represented on a graph? [|How to make a graph]
 * 5) Learn about how slopes of graphs can show you the speed and acceleration.
 * 6) If you need to learn more about the slope, look at these sites: [|What is slope?] and [|Using slope]
 * 7) Download and complete this worksheet: [|Distance and Velocity]
 * 8) Calculate the slope for each of the 6 questions on the worksheet.
 * 9) On a separate sheet of paper, use [|Google Maps] to determine the distances between the school and the home of each student in the group. Estimate how long it takes you to get to school. Determine the average speed of each person in your group for their trip to school each morning. Who is going the fastest? Who is going the slowest?

Your final product will include two things: 1. The completed worksheet (one per group). Each question should have a distance versus time graph, a velocity versus time graph, and the acceleration (slope) of the velocity graph calculated. 2. A paper (one per group) detailing the distance, time, and velocity of each student's trip to school. The fastest and slowest trips should be labelled.

 **Evaluation**  Each of the questions on the worksheet is worth 10 points. Although accuracy is important, partial credit will be given for the correct process or an attempt, even if the answer is not correct. Each calculation of the speed to school is worth 10 points, and you must answer who is fastest and slowest. Participation will be worth 10 points. This will be evaluated according to how well you worked in your group and whether you contributed equal amounts of work.

Total: 100 points

 **Conclusion**  In this assignment you learned about the concepts of speed and acceleration. You learned that speed (velocity) is the change of distance divided by the change in time, and acceleration is the the change in speed(velocity) divided by the change in time. In addition, you learned how to interpret and create graphs of distance versus time, speed versus time, and acceleration versus time.

If you would like to see a fun video about speed and acceleration in daily life take a look at this: [|Speed & Acceleration]

 **Credits & References** Links used in this webquest:

1. http://tulyn.com/8th-grade-math/distance/videotutorials/finding-the-average-speed_by_virginia.html 2. http://www.kidsknowit.com/interactive-educational-movies/free-online-movies.php?movie=Acceleration 3. http://www.physicsclassroom.com/Class/1DKin/U1L3a.cfm 4. http://mathforum.org/cgraph/cslope/slope.html 5. http://mathforum.org/cgraph/cslope/usingslope.html 6. http://misterguch.brinkster.net/HM012.doc 7. http://maps.google.com 8. http://www.youtube.com/watch?v=DRb5PSxJerM  Thank you internet, you are a source of wonder.

Thanks to Chris Halter, for stopping us before we completely ruined his class template.