Physics SL

Fields

D: Gravitational, electric, magnetic and electromagnetic field models.

Use gravitational field strength and potential concepts Analyse circular motion in gravitational fields Use electric field strength and electric potential Analyse magnetic forces on charges and currents Describe charged-particle motion in electromagnetic fields Find current from a charge-time graph Read two points off a charge-time graph and find the electric current as charge over time (the gradient). Find resistance from a voltage-current graph Read two points off a voltage-current graph for an ohmic conductor and find the resistance as voltage over current (the gradient).