6.2.1 Coulomb's Law

• What is the mathematical formula for Coulomb's Law?

  $F =$$\frac{kq_{1}q_{2}}{r^{2}}$
• The permittivity constant 'k' in Coulomb's Law depends on the material between the charges.


  True
• What is the relationship between charge magnitude and force in Coulomb's Law?

  Directly proportional
• Arrange the steps to calculate the force using Coulomb's Law:

  1️⃣ Identify the magnitudes of the charges

  2️⃣ Determine the distance between the charges

  3️⃣ Substitute the values into the formula

  4️⃣ Calculate the force
• The permittivity constant 'k' in Coulomb's Law depends on the medium
• In Coulomb's Law, the charge magnitude is directly proportional to the force
• The value of Coulomb's constant in free space is approximately 8.9875 \times 10^{9} \, Nm^{2} / C^{2}</latex>.


  True
• Coulomb's Law states that the force between two point charges is inversely proportional to their charge magnitudes.

  False
• The force between two point charges decreases when the distance between them increases.


  True
• Coulomb's Law describes the force between charges
• What does 'q_1' represent in Coulomb's Law?

  Charge magnitude
• The permittivity of the medium affects the force between charges in Coulomb's Law.

  True
• Match the variable in Coulomb's Law with its description:

  F ↔️ Force between two charges

  q_1 and q_2 ↔️ Magnitudes of charges

  r ↔️ Distance between charges

  k ↔️ Permittivity constant
• What is the permittivity constant in Coulomb's Law dependent on?

  The medium
• Match the variable in Coulomb's Law with its description:

  F ↔️ Force between charges

  q_1, q_2 ↔️ Charge magnitudes

  r ↔️ Distance between charges

  k ↔️ Permittivity constant
• What is the electrical property of matter that causes it to experience a force in an electric field called?

  Charge
• What happens to the force in Coulomb's Law when the distance between charges doubles?

  Decreases by a factor of four
• What type of proportionality exists between force and permittivity in Coulomb's Law?

  Direct proportionality
• What is the permittivity constant k dependent on in Coulomb's Law?

  The material between charges
• The distance between two charges in Coulomb's Law is measured in meters.


  True
• What does the distance term r</latex> represent in Coulomb's Law?

  Separation between charges
• What type of proportionality exists between force and distance in Coulomb's Law?

  Inverse square
• What is the electrostatic force between two charges $q_{1} =$$4 \times 10^{ - 6} \, C$ and q_{2} = 6 \times 10^{ - 6} \, C</latex> separated by a distance of $r =$$0.2 \, m$?


  $5.3925 \, N$
• The Coulomb constant k depends on the permittivity of the medium
• Coulomb's Law states that the force between two point charges is directly proportional to the product of their magnitudes and inversely proportional to the square
• The distance between two charges in Coulomb's Law is denoted by the variable r
• The force in Coulomb's Law is inversely proportional to the square of the charge separation
• What is the formula for Coulomb's Law expressed mathematically?

  $F =$$\frac{kq_{1}q_{2}}{r^{2}}$
• What is the relationship between charge separation and force in Coulomb's Law?

  Inversely proportional to the square
• The force in Coulomb's Law is inversely proportional to the square of the charge separation.


  True
• The permittivity constant in Coulomb's Law depends on the material
• In Coulomb's Law, the force is inversely proportional to the square of the distance.
• In Coulomb's Law, the charge magnitude is directly proportional to the force
• In Coulomb's Law, the force between two point charges depends on their magnitudes and the distance
• What is the unit of charge in Coulomb's Law?

  Coulomb
• Understanding the terms in Coulomb's Law is crucial for applying it accurately
• In Coulomb's Law, the force is directly proportional to the product of the charge magnitudes
• Steps to calculate electrostatic forces using Coulomb's Law

  1️⃣ Identify given values

  2️⃣ Use the formula $F =$$\frac{kq_{1}q_{2}}{r^{2}}$

  3️⃣ Substitute values into the formula

  4️⃣ Calculate the force F
• What is the inverse square relationship highlighted by Coulomb's Law related to?

  Electric fields
• What is the value of Coulomb's constant k in $Nm^{2} / C^{2}$?


  $8.9875 \times 10^{9}$