physics lecture 1 "Electro static charge"

What is the SI unit of electric charge?

• Volt

• Ampere

• Ohm

• Coulomb

What happens to charges of the same sign when they are brought close to each other?

• They combine

• They attract each other

• They repel each other

• They neutralize each other

What is the principle that states electric charge is always conserved in an isolated system?

• Conservation of Charge

• Conservation of Momentum

• Conservation of Mass

• Conservation of Energy

What is the relationship between electric force and distance according to Coulomb's Law?

• Directly proportional

• Inversely proportional

• Independent

• Exponential

What is the term for the study of electromagnetic phenomena when there are no moving charges?

• Magnetostatics

• Electromagnetism

• Electrostatics

• Electrodynamics

What is the formula for electric charge in terms of current and time?

• Q = mgh

• Q = It

• Q = Vt

• Q = R/I

Which of the following is an example of an insulator?

• Rubber

• Copper

• Gold

• Aluminum

What is the electrostatic constant often written as?

• 4πε

• 1/2πε

• 1/4πε

• 2πε

What does the quantization of charge imply?

• Charge is continuous

• Charge is always negative

• Charge exists in discrete packets

• Charge can be created

What is the force between two point charges directly proportional to?

• Distance

• Mass of the charges

• Product of the charges

• Sum of the charges