E. Use rubber wheels instead of the plastic wheels.
Rubber wheels have better traction than plastic wheels, which will help the car grip the ramp better and travel a longer distance.
Carlos is making a small wooden car to race in a school contest. He wants his car to go the farthest distance down a ramp. The teacher has given each student a block of wood to use as the car's body, two metal axles, and four smooth plastic wheels. Students can make any changes they like to the plastic wheels.
What should Carlos do to the wheels so that his car travels for the longest time?
• A. Cover the plastic wheels with sandpaper.
• 8. Use rigid bottle caps instead of plastic wheels.
• C. Cover the plastic wheels with felt.
D. Do not make changes to the plastic wheels.
E.
Use rubber wheels instead of the plastic wheels.
1 answer
1 answer