Coulomb's Law Model  

By building this model from the Universal Gravitation model, students realize the similarities and differences between the two.

STELLATM software is needed to view the model in Mac (hqx) format or PC format.

[ Diagram Level | Equations Level | Graphs ]




position_1(t) = position_1(t - dt) + (rate_of_change_of_pos_1) * dt
INIT position_1 = Init_position_1
rate_of_change_of_pos_1 = velocity_1

position_2(t) = position_2(t - dt) + (rate_of_change_of_pos_2) * dt
INIT position_2 = Init_position_2
rate_of_change_of_pos_2 = velocity_2

velocity_1(t) = velocity_1(t - dt) + (rate_of_change_of_vel_1) * dt
INIT velocity_1 = 0
rate_of_change_of_vel_1 = accel_1

velocity_2(t) = velocity_2(t - dt) + (rate_of_change_of_vel_2) * dt
INIT velocity_2 = 0
rate_of_change_of_vel_2 = accel_2

accel_1 = -net_force/mass_1
accel_2 = net_force/mass_2

charge_1 = 1e-4
charge_2 = 1e-4

Distance_between = position_2-position_1

Init_position_1 = -1
Init_position_2 = 1

mass_1 = 1
mass_2 = 1

net_force = 9e9*(charge_1*charge_2)/(Distance_between)^2
Time Specs Settings
Range: 0-1; dt = 0.01; Integration Method = Runge-Kutta 4



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