Place your racecar on the floor for this activity. We don’t want to drive off a table and crash!
Program your racecar to move at power=8, forward, for 2 seconds. Put a stop as the final block. Measure how far it went in 2 seconds.
Change your program for power=4 for two seconds. How far do you think it will go, farther or less?
Try it. How far did it go?
Change your program for 6 seconds. Predict how far it will go in 6 seconds. Was your prediction close? (It might not be perfect since the wheels can slip or other interference.)
Write down how far the car travels each time. You could use a chart like this.
| Power | Seconds | How far? |
|---|---|---|
| 8 | 2 | _______ |
| 4 | 2 | _______ |
| 4 | 6 | _______ |