Thursday December 6, 2018 Classwork.
Today you will be doing a webquest on SIMPLE MACHINES. CLICK HERE to go to the webquest instructions. Answer ALL of the questions and email them to me at email@example.com. If any of the links do not work or return an error you have a missing plugin, use google to find the answers to those questions. The weight of this assignment is 35%, so it is a good opportunity to help your grade.
Tuesday December 4, 2018 CLASSWORK
The assignment in class today is to do a webquest on SIMPLE MACHINES. Click HERE to go to the website that has the instructions for the webquest. If you are unable to links on the instructions, you may use Google to look up the information. YOU WILL DESIGN A MACHINE AT THE END, BUT YOU WILL NOT BUILD IT.
As part of the exercise, you will do a Google Doc. Email the Google Doc you create to firstname.lastname@example.org for a grade.
If you do not finish in class, the work must be finished for homework. You may work together, but everyone must turn in individual Google Documents. Everyone who submits copied documents will receive a zero. DO YOUR OWN WORK.
Note: If you have not done theSURVEY, CLICK HERE and complete it.
COMPLETE THE SURVEY AT THE FOLLOWING LINK:
a. How to Scale a Graph
1. Find the highest number (the highest hill in the case of a roller coaster)
2. Count the number of blocks on both the X axis and Y axis
3. Divide the number of blocks into units divisible by 5
b. Select Variables
1. The value you manipulate, the independent variable, goes on the Y axis
2. The value that depends on what you manipulate (the dependent variable) goes on the X axis
Example: Speed = Distance / Time Distance is what you manipulate. The amount of time you travel is dependent on the distance covered.
A. Plot one set of points at a time
B. Use different colors to plot each line. If you use the same color, one can be a solid color, another can be long dashes, and the third could be short dashes.
PLOT ALL THREE HILLS ONE AT A TIME ON THE GRAPH
1. Explain how to Calculate PE and KE for your track sections
2. Redo Questions 1,2,4, and 5
3. Design and Layout of track including height measurements where it is not level
4. Predict PE and KE
5. Confirm that roller coaster will work by using PE and KE calculations
6. How would you calculate PE and KE by using percentage of height?
PURPOSE: Develop better note-taking skills to help learn more resulting in improved grades.
Copy each section of the following webpages. At the end of each paragraph, write a summary of that paragraph. At the end of each section, write a summary of that section.
11/14/2018 Homework Question
Use Newton’s Laws of Motion and the different types of friction to explain the movement of a bicycle:
1. Beginning with the bike at rest
2. How friction is involved while riding the bike
3. Ending with the bike when it stops
11/13/2018 WEBQUEST - Roller Coaster
Objective: Research, plan, and design a roller coaster.
Did you know that roller coasters aren’t just thrill rides? Roller coasters are examples of the laws of physics in operation. Roller coasters are pulled to the top of the highest hill, and then released. A coaster has potential energy as it is pulled to the top, but is changes to kinetic energy as the coaster begins its descent. Gravity and friction control the rest of the ride. Why don’t the cars of a roller coaster fly off the track? Why don’t the passengers fly out of the seats? How high does the first hill of a coaster have to be? What physical law determines how many hills, curves and loops a roller coaster track can have? You can find answers to these questions in this web quest.
TASK- Your job in this web quest is to find out how roller coasters work and use this information to plan design and build a simple model of a roller coaster. You will learn about roller coaster design, laws of motion, and about velocity and acceleration. You will design virtual roller coaster tracks and see what happens to the coaster when you change variables such as height of hills, length of track, mass of the coaster, and speed of the coaster. Then you will use simple materials to build a model and test your roller coaster track. Finally, you will report on your experiment.
Resources: Look at the web sites given here to research information about roller coasters. Answer the questions on a separate paper.
1. How does a roller coaster work?
2. What gives a roller coaster its power?
3. What “drives” the roller coaster?
4. What helps keep the ride smooth?
5. Describe the difference between a wooden and steel roller coaster.
6. Click on the Physics Glossary. Define centripetal force, inertia, friction, potential energy, and kinetic energy. Give an example of each.
7. Click on “Design a Roller Coaster.” Follow the directions to create your own coaster. Did your design pass or fail? What was your safety rating?
8. What did you have to do in order to make your coaster fun and safe?
Identify the types of forces that affect the coaster as it follows the track. (You may use other websites as a reference.)
9. Where does potential energy happen?
10. Where does the rider feel like they are falling?
11. Describe how gravitation and centripetal acceleration make a person feel.
12. Where do the riders experience acceleration?
13. Where do they experience centripetal force?
14. Describe how friction plays a necessary role in a roller coaster.
MAKE SURE TO SCROLL DOWN! Visit this site to design a roller coaster by manipulating the height of the hills, sizes of the loops, speed of the coaster, and mass of the coaster on an interactive screen. This is a fun site, but it takes a while to load so be patient.
15. Did your car make it all the way through without coming off the track?
16. What was the problem?
17. What did you do to make the car go all the way to the end?