E Card A: What is the effect of magnetic
angement on magnetic force?
Experiment Results
✪
sensor reading:
1.4 mT
sensor reading:
4.3 mT
J
sensor reading:
8.1 mT
Evidence Card C: What is the effect of rail
material on the kinetic energy of the car?
Experiment Results
Test 1
Test 2
Test 3
Rail material
wood
aluminum
iron
Distance
between car
and launcher
10 cm
10 cm
10 cm
Kinetic energy
after the car
was launched
3.1kJ
2.9 kJ
2.2kJ