Fast and Furious: Off To The Races - Investigating Force and Motion

Place the hardwood strip flat on the floor. Place the toy car on it.
Attach the car to spring balance. Ensure that the car is absolutely stationary.
Gently increase force applied on the car by pulling at the spring balance.
Keep increasing the force until the car begins to move.

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Record the force required for moving the car from a stationary position on the hardwood surface.
Repeat steps 1 through 5 for each of the surfaces: sandpaper Grades 100 and 150, bubble wrap, aluminum foil, butter paper and record the data in Table 2a.

Determining the Force of Static Friction and Kinetic Friction on: INCLINE PLANE & DIFFERENT SURFACES

Using the Graduated Incline Plane increase the angle of wooden track by 10 degrees. Place the toy car on top edge of the incline. Ensure that the car is absolutely stationary.
Mark the starting point of the car with a piece of coloured chalk.
Attach the spring balance to the rear end of the car. Hold the car stationary and pull the spring balance to apply a 10 gm force to the car.
Detach the spring balance to let go of the car.
The car will run fast and then slowly come to a stop.

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Record the stopping distance in Table 2b.
Repeat steps 1 through 6 by increasing the angle of incline each time to 15 degrees and next time to 20 degrees respectively. Record the distance traveled.
Repeat steps 1 through 7 for each of the surfaces: sandpaper grades 100 and 150, bubble wrap, aluminum foil, butter paper and record the data in Table 2b.