Electric Current Quizizz

What unit is used to measure electric current?

• Volt

• Ampere

• Ohm

• Joule

What is the primary factor that causes electric charges to occur?

• Temperature gradient

• Voltage difference

• Magnetic field

• Light intensity

Which of the following is NOT a way to break a circuit?

• Removing the battery

• Removing the device

• Adding more wires

• Removing wires from the device

What is the effect of removing wires from a device in a circuit?

• The circuit remains closed

• The circuit is broken

• The current increases

• The voltage decreases

Which component in a dry cell battery acts as the anode?

• Graphite rod

• Zinc inner case

• Manganese dioxide paste

• Metal cap

What is the function of the plastic casing in a lead-acid battery?

• To act as an electrode

• To provide structural support

• To store energy

• To act as a terminal

Which material is an excellent conductor?

• Rubber

• Wood

• Copper

• Glass

What happens to materials that can become superconductors at low temperatures?

• They have increased resistance

• They have no resistance

• They become insulators

• They conduct heat better

Tags

NGSS.HS-PS3-5

What is the primary function of resistance in an electrical circuit?

• To increase current flow

• To store electrical energy

• To oppose the flow of electrons

• To convert electrical energy into mechanical energy

What is the effect of resistance on electrical energy?

• It stores electrical energy

• It amplifies electrical energy

• It changes electrical energy into thermal energy and light

• It reduces electrical energy to zero