How can a Car go Faster?
- In order to answer the question above, watch the first video. Only watch the beginning of the video about the racecar. Stop it after this part. What did you learn?
- Now watch the next video, “Hot Wheel Cars.” What did you learn from this video?
- Finally watch the last video, “Pinewood Derby Car.” Only watch about five minutes of the beginning of this video. You will watch the rest of the video at a different time. What did you learn?
- Now answer these questions.
What are some ways that cars have been improved to become faster?
What factors influence the time a car takes to travel a distance?
5. Build you racecar. Use the directions from the Lego app.
6. Program you racecar to travel 3 meters.
7. Time how long it takes your car to travel three meters. Do this four times. Use a tile floor.
Trial
|
Time
|
8. Take the wheels off, time how long it takes your car to travel three meters. Do this four times. Use the tile floor.
Trial
|
Time
|
9. Now you will be completing the same two experiments but on carpeting. What do you predict will happen?
10. Now test your car traveling 3 meters. Put the wheels back on your car. Do this four times and use a carpeted floor
Trial
|
Time
|
11. Now test your car traveling 3 meters. Take all four wheels off. Do this four times and use a carpeted floor
Trial
|
Time
|
12. Experiment with the types of wheels you are using. Use all small wheels or all big wheels, etc. Have these cars go 3 meters. What do you notice? Does the wheel size make a difference in the speed of your car? Change the pulley system. Look at the last circle in the create part of the app to learn how to do this. How does you car work after you made this change? Why?
12. Write a paragraph explaining what factors make a car go faster. If you were designing your own car, what would you do to make it go faster.
No comments:
Post a Comment