Electrostatic Forces Quiz

What is the principle that governs the shock you get from a doorknob, the trick with a balloon to make your hair stick up, and a lightning strike?

• Static electricity

• Magnetic force

• Nuclear force

• Gravitational force

What is the term for the process of an object obtaining a net amount of positive or negative electric charge, creating an imbalance that wants to be returned to equilibrium?

• Electrostatic equilibrium

• Electric polarization

• Static electricity

• Charge conservation

What type of materials let free electrons move freely throughout the solid?

• Superconductors

• Semiconductors

• Conductors

• Insulators

What is the process called when an object has a different number of free electrons than another part, creating an imbalance of electrical charge?

• Charging by induction

• Charging by friction

• Charging by contact

• Grounding

What is the law that states that charge can only move from one place to another and can never be created or destroyed?

• Newton's Law of Motion

• Coulomb's Law

• Ohm's Law

• Conservation of Electric Charge

What is the equation used to calculate the force between two charged particles?

• Ohm's Law

• Coulomb's Law

• Newton's Second Law

• Hooke's Law

What is the proportionality constant in Coulomb's Law for air or vacuum?

• 6.67 x 10^-11

• 9 x 10^9

• 3 x 10^8

• 1.38 x 10^-23

What is the force between two electrons that are 1 nanometer apart?

• 2.3 x 10^-10 N

• -4.6 x 10^-10 N

• 4.6 x 10^-10 N

• -2.3 x 10^-10 N

What is the term for the process of creating a net charge without contacting another object?

• Charging by friction

• Charging by contact

• Grounding

• Charging by induction