Electrical Circuits and Ohm's Law

In this type of current, the flow of charge that changes direction periodically.

• AC

• DC

Which particle travels through conductors to create electricity?

• Protons
• Ions
• Electrons
• Electrodes

This type of current is used in all devices with a circuit because it's easier to control and safer for the circuits.

• AC
• DC

What are the three components required for a complete circuit?

• Source, switch, resistor
• Source, switch, conductor
• Switch, conductor, insulator
• Source, conductor, resistor

Which one of these is NOT a conductor?

• Glass
• Copper
• Gold
• Silver

In which type of circuit if one component breaks down, the whole circuit will burn out.

• Parallel Circuit

• Series Circuit

Which of the following (if connected to the wires of a circuit) would allow current to flow?

• A piece of wood

• A rubber wheel

• A copper coin

• A plastic hairbrush

Which is an accurate description of a power source for a circuit?

• It conducts electricity to the resistor

• It switches on and off a circuit

• It provides voltage and current to power the circuit

• It's a part of a circuit that turns electricity into work, light or heat

By not changing anything on circuit on the image, how many lightbulbs would be turned on?

• 0

• 1

• 2

• 4

How do we calculate the TOTAL VOLTAGE in a circuit in parallel?

• V_TOTAL= V1 + V2 +V3

• The Voltage is constant.