Q3_Lesson 2 - Coulomb's Law

Charges, distance

What are the factors that affect the forces between two charges?

increasing

Lower force = ____distance

lowering

Higher force = ____ distance

gravity

Coulomb’s Law mostly occurs in ___ where it is affected by mass

Coulomb’s Law

Quantifies the amount of force between two stationary charged particles

Electrostatic Force

directly dependent on the amount of charge of the interacting particles

Inverse-square relationship

between the electrostatic force and the distance separation of the charges

Coulomb’s Law

The magnitude of the electric force between two-point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them

directly proportional

electric force between two-point charges to the product of the charges

9x10⁹ Nm²/ C²  
1/ 4(pi)(permittivity)

value of constant K

Fe = k |q1q2| / r2

Coulomb’s Law Formula

Free-Body Diagrams

Used to show the relative magnitude and direction of all forces acting upon an object in a given situation

False

(T/F) Not all charged particles exert force to one another

Superposition of Forces

When more than two charges are present, the resultant force on any one of them equals the vector sum of the forces exerted by the various individuals' charges

Superposition of Forces

In getting the net force on a point charge in a system of charges, this should be applied

Fi = FA + FB + FC

Formula for Superposition of Forces

True

(T/F) There is an inverse-square relationship between electrostatic force and distance separation of forces

False

Two positive charges will have an attractive force

True

The direction of the electrostatic force is determined by the charge of the particles