All Flashcards
Given a diagram of two charges, q1 and q2, separated by a distance r, what does each variable represent in Coulomb's Law?
q1: Magnitude of charge 1, q2: Magnitude of charge 2, r: Distance between the charges.
Given a free-body diagram for a charged sphere suspended by a thread, label the forces acting on it.
T: Tension force, mg: Gravitational force, Fe: Electric force.
What is the difference between attractive and repulsive electric forces?
Attractive: Occurs between opposite charges. Repulsive: Occurs between like charges.
Compare the effect of distance on electric force and gravitational force.
Both forces are inversely proportional to the square of the distance between objects.
What is the effect of increasing the distance between two charges on the electric force?
Decreases the magnitude of the electric force.
What is the effect of increasing the magnitude of either charge on the electric force?
Increases the magnitude of the electric force.
What happens when a neutral object gains electrons?
The object becomes negatively charged.
What happens when a charged object is brought near another charged object?
They exert an electric force on each other (attractive or repulsive).
What happens when multiple electric forces act on a single charge?
The net force is the vector sum of all individual forces.