Speed, Velocity, Distance, Displacement and Acceleration

1. Speed, Velocity, Distance, Displacement and Acceleration

2. Project Objectives • Calculate the average speed of an object using the change of position and elapsed time. • Create line graphs using measured values of position and elapsed time. • Describe and analyze the motion that a position-time graph represents, given the graph.

3. Project Objectives • The motion of an object can be described by its position and velocity as functions of time and by its average speed and average acceleration during intervals of time. • Distinguish between the variables of distance, displacement, speed, velocity, and acceleration. Use the change of speed and elapsed time to calculate the average acceleration for linear motion. Describe and analyze the motion that a velocity-time graph represents, given the graph.

4. Focus • Imagine that you and your friend are planning your spring break road trip. If you had millions of dollars and no responsibilities where would you go? The project below is designed for such a scenario. It is also designed to open your eyes to all the physics involved with traveling. You will be asked to pick a dream and discuss the different physics involved in your travels.

5. Title Slide of Presentation Group Member’s Names

6. Slide # 1 • Using Google Maps, map out a route from Lowell High School (address at lowellschools.com) to your dream travel destination. • Take a screen shot showing the entire route and include it in this slide. • On the map, insert a text box that explains: • Your total distance • Your total travel time

7. Slide # 2 • Copy your map onto this slide. Accurately Place your displacement vector on your map. • Insert a text box and explain: • how your total distance traveled be different than your total displacement. Which will be greater? • Insert another text box and explain how the spherical shape of the earth would have an effect on your displacement vector.

8. Slide # 3 • Use the your estimated traveling distance and elapsed time to find your average traveling speed according to Google. Include in this slide.

9. Slide # 4 • Research 2 other destinations you want to stop at on the way to your final destination. If you have choose a nearby destination these could include stops for gas or food. • Insert these destinations into Google maps and re-enter your route information into Google. • Take a screen shot and place your map with your new updated route on this slide.

10. Slide # 5 • Using Geogebra, construct a distance-time graph including a point at each stop. Keep in mind your slope should reflect your average speed. Also assume you are traveling non-stop back home. • After constructing the graph you need to label each segment (you should have 7 segments) with: • the slope • the distance and time elapsed during travel. • the time elapsed during each stop.

11. Slide # 6 • Paste your map from slide 4. On your map, Place and label a velocity vector at each stop showing your direction (N, S, E, W, NE, SE, SW, NW) and average speed away from the stopping point (you should have 4 vectors.

12. Slide # 7 • From a stoplight, assume that it takes your vehicle 10 seconds to reach your average speed. What is your acceleration rate in ? • After driving at your average speed for one minute, the light in front of you turns red and it takes your vehicle 8 seconds to come to a complete stop. What is your acceleration rate in ? • Answer the above two questions, showing your work in equation editor. And include your answer on this slide.

13. Slide # 8 • Using Geogebra, construct a Speed-time graph representing the scenarios from slide # 7. Place a point at each place your acceleration changes (i.e. goes from positive to zero ect.) Keep in mind your slope should reflect your acceleration and lines should reflect your speed. • After constructing the graph you need to label each segment (you should have 3 segments) with: • Positive, negative or zero acceleration • Slope

14. When you are finished… • Feel free to ask me to look over your ppt before you submit it. • Name your saved file like this… • If Mr. Gladding and Mr. Smith are in 2nd hour and worked on the project together their file would be named • 2.gladding.smith • If Mr. Gladding and Mr. Smith are in 3rd hour and worked on the project together their file would be named • 3.gladding.smith • Please attach the PPT to an email and send it to • EGladding@lowell.k12.mi.us • Please put Physics 9 Project as the subject of the email. • Check with me to see if I received it!