Coulomb's Law Flashcards

Which two variables affect the electrostatic force?

What do you use to measure electric charges (q1 and q2)?

Rubbing a balloon on someone's head is an example of charging by ________

What is the process of charge transfer from one object to another through direct contact called?

What happens to the force between two charges if one of the charges is tripled?

If the distance between two charges is doubled, what happens to the force between them?

Charge A attracts Charge B. Charge B attracts Charge C. How would Charge A and C interact?

Coulomb's Law tells us that opposite charges __________

A positive charge and another positive charge will _________

What would happen to the electrostatic force if both charges are doubled?

If the force between two charges is negative, what does that tell us about the two charges?

What is the formula for calculating the electrostatic force?

What does F represent in the context of electrostatics?

What do Q1 and Q2 represent?

What does R represent in the electrostatic force equation?

What is the value of the constant k in Coulomb's Law?

Coulomb's Law Overview

Electrostatic force is influenced by two essential variables: the magnitudes of the charges and the distance between them.
Electric charges are measured in Coulombs (C), which is the standard unit for quantifying charge in physics.

Charging Methods

Charging by friction occurs when two objects interact without direct contact, such as a balloon being rubbed on hair.
Conduction involves transferring charge through direct contact between objects.

Force Interactions

When one charge is tripled, the electrostatic force increases to three times its original value.
Doubling the distance between two charges reduces the electrostatic force by a factor of four.

Charge Relationships

Charge A attracts Charge B, while Charge B attracts Charge C; thus, Charge A and Charge C would repel each other.
Opposite electrical charges attract each other, while like charges (both positive or both negative) repel each other.

Force and Charge Variations

Doubling both charges results in the electrostatic force increasing by a factor of four.
A negative electrostatic force indicates that the two charges are attracting each other.

Coulomb's Law Formula

The mathematical expression for Coulomb's Law is given by: F = (k)(Q1)(Q2)/(r^2).
In this formula, F represents the force between charged particles Q1 and Q2, r is the distance between the centers of the charges, and k is a constant.

Constants and Notations

The constant k is approximately 8.99 x 10^9 Nm²/C², used in calculating the electrostatic force between charges.
Q1 and Q2 denote the two charged particles involved in the interaction, while R stands for the distance separating them.

Test your knowledge with these flashcards focused on Coulomb's Law, exploring key concepts such as electrostatic force, electric charge measurements, and charging methods. Each card presents a question to help reinforce your understanding of the principles involved in electrostatics.