Quiz 1- Coulomb's Law

What is the fundamental unit of electric charge?

• Coulomb (C)
• Newton (N)
• Volt (V)
• Ohm (Ω)
• Joule (J)

Which particle has a positive charge?

• Proton
• Electron
• Neutron
• Photon
• Positron

What type of material allows the flow of electric charge?

• Conductor
• Insulator
• Semiconductor
• Superconductor
• Dielectric

Which of the following is an example of an insulator?

• Rubber
• Copper
• Silver
• Graphene
• Mercury

What is the best conductor of electricity?

• Silver
• Copper
• Iron
• Aluminum
• Gold

What is Coulomb’s Law constant (k) for air?

• 9 x 10^9 Nm²/C²
• 1 x 10^6 Nm²/C²
• 8.99 x 10^7 Nm²/C²
• 7 x 10^9 Nm²/C²
• 1.6 x 10^-19 Nm²/C²

Which method of charging involves rubbing two objects together?

• Friction
• Conduction
• Induction
• Polarization
• Ionization

Charging by conduction requires what action?

• Touching
• Rubbing
• Bringing near
• Grounding
• Ionizing

What law states that total charge is conserved?

• Law of Conservation of Charge
• Coulomb’s Law
• Law of Attraction
• Faraday’s Law
• Gauss’s Law

What is the electric force between two opposite charges?

• Attraction
• Repulsion
• No Force
• Zero Net Force
• Balanced Force