Complete this for a Crit D grade! This asks you to:
-Draw your own force diagram of your car, like we did on the example cars last week.
-Come up with one change you could make to your car based on our discussion about forces.
-Retest your car and describe whether your change helped using scientific thinking!
If you haven't completed your initial tests, (questions 5-9 in Car Design Part 3) do that first, then come back! You'll also probably want to use Design Part 4 from last week to help you.
6 points
6
Question 1
1.
What forces make your car move? What forces make it stop?
- Take a photo of your car below (or draw it if you prefer / don't have it).
- Add arrows to show the forces acting on it, and label each force.
- Label where potential energy is being stored.
- Optional: Add a written explanation if it will make your thinking clearer.
Check out questions #10&11 from Design Part 4 for help! Or ask!
3 points
3
Question 2
2.
Look back at #13 & #15 on your Design Part 4. Choose at least one of the ideas you came up with to improve your car, and do it!
Take a picture of your revised car & describe: what did you change and why?
3 points
3
Question 3
3.
Did it work? Test your car with the change(s) you made!
Did the changes improve the speed or distance traveled from your tests in Part 3? Not at all, a little or a lot? Use specific numbers to describe what happened.
You might say, "In my initial tests, my car traveled ___ on average. However, after...
4 points
4
Question 4
4.
If yes, why do you think it made a difference? If not, why do you think it didn't help?
Use what you know about Newton's first law and forces to suggest an explanation. Try to use 3-4 sentences and scientific language, such as:
"My changes affected the __ force acting on my car by...
"Newton's law supports this idea because...
Done! Nice work.
1. Review your work. Make sure it sounds clear.
2. Post in chat so that I know you're done and submit!.
3. Use leftover time to work on or test your car further. You can also check out the "Done Do's."