10.2 Electrical Circuits

What is an electric circuit?

• A single wire with no components

• An open loop of wire

• A closed loop of wire connecting electrical components

• A loop of wire with only one component

What is the SI unit for electric charge?

• Ohm

• Volt

• Ampere

• Coulomb

What particle carries electric charge in a wire?

• Electrons

• Ions

• Neutrons

• Protons

What is the charge of an electron?

• 1.60×10−19 coulombs

• -1.60×10−19 coulombs

• 3×10−26 kg

• 1 coulomb

What is the flow of electric charge called?

• Current

• Voltage

• Power

• Resistance

What is the SI unit for current?

• Ampere

• Volt

• Coulomb

• Ohm

What is the role of a battery in a circuit?

• To stop the flow of electrons

• To decrease the voltage

• To act as an insulator

• To pump electrons to a high voltage

What is the term for materials that do not allow electricity to flow through them?

• Insulators

• Resistors

• Semiconductors

• Conductors

What is the term for materials that have properties between conductors and insulators?

• Semiconductors

• Conductors

• Insulators

• Superconductors

What is electrical resistance?

• The flow of electric charge

• The opposition to the flow of electric charge

• The potential energy of electric charge

• The speed of electric charge