Method fir acceleration: Draw a series of straight lines, each 20 cm apart, perpendicular to the edge of the
bench.
Attach the car to the string at one end, with the other end running across the bench
pulley.
Attach the weight stand to the loose end of string. Hold the weight of the pulley, so it doesn’t pull the car
but so that the string is fully extended.
Release the weight stand (allowing it to fall) and begin the timer. Stop timing when
the car hits the pulley at the other end of the bench.
Investigating the relationship between force and extension for a spring
1. Set up clamp stand, bosses, and clamps
2. Place heavy weight on clamp stand
3. Attach meter rule under spring, with top at 0 point
4. Attach wooden splint pointer to bottom of spring, keep horizontal
5. Read unstretched length of spring
6. Add 1 Newton weight, read new pointer position
7. Continue adding 1 Newton weights, read pointer positions
8. Calculate extension for each weight by subtracting unstretched length