Understanding Charge: Concepts and Calculations

Which of the following terms is NOT directly related to the concept of charge?

• Voltage

• Current

• Resistance

• Density

How does an object become negatively charged?

• By removing protons

• By adding electrons

• By removing electrons

• By adding protons

What does a positive charge on an object indicate?

• More electrons than protons

• More protons than electrons

• Equal number of protons and electrons

• More neutrons than protons

What is the symbol used to represent charge in equations?

• R

• V

• Q

• C

What is the metric unit for measuring charge?

• Ohm

• Coulomb

• Volt

• Ampere

Which equation represents the relationship between charge, capacitance, and voltage?

• F = m * a

• P = V * I

• V = I * R

• Q = C * V

What is the approximate charge of a single electron?

• 1.6 * 10^-19 C

• 1.6 * 10^19 C

• 1.6 * 10^-9 C

• 1.6 * 10^9 C

How many electrons are approximately equivalent to one Coulomb of charge?

• 6.22 * 10^16

• 6.22 * 10^17

• 6.22 * 10^19

• 6.22 * 10^18

What is the basic unit of charge used in atomic mass units?

• 1 electron volt

• 1 Coulomb

• 1.6 * 10^-19 C

• 1 atomic mass unit

If an object has a charge of 12 microcoulombs, how many electrons have been added or removed?

• 7.49 * 10^12 electrons added

• 7.49 * 10^12 electrons removed

• 7.49 * 10^13 electrons added

• 7.49 * 10^13 electrons removed