All Flashcards
How does an object become negatively charged?
An object becomes negatively charged by gaining extra electrons.
How does an object become positively charged?
An object becomes positively charged by losing electrons, resulting in more protons than electrons.
What are the steps to find the net force on a charge due to multiple charges at an angle?
- Resolve forces into x and y components. 2. Find the net force in the x-direction (Fx_net) and y-direction (Fy_net). 3. Use the Pythagorean theorem to find the magnitude of the net force: F_net = sqrt(Fx_net^2 + Fy_net^2). 4. Use trigonometry to find the direction of the net force.
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.
What is electric charge?
A fundamental property of matter that can be positive (protons) or negative (electrons).
Define elementary charge.
The smallest unit of charge, equal to the magnitude of the charge of a single electron or proton (1.602 x 10^-19 C).
What are dipoles?
Separation of charge within an object, creating partial positive and negative ends, even if the overall charge is neutral.
What is a point charge?
A charged particle where charge is concentrated at a single point.
Define Coulomb's Law.
Describes the force between two charged particles; attractive for unlike charges and repulsive for like charges.
What is the Superposition Principle?
The net force on a charge due to multiple other charges is the vector sum of the individual forces.