NGSS Physics IS3T2: Circuits

Front

What is the total current through a circuit if it is 0.02 amps?

Back

The total current through the circuit is 0.02 amps.

Front

Why are electrical wires usually covered with a layer of plastic?

Back

Electrical wires are covered with plastic to make them safe.

Front

If the current through a battery is 10A, what would the current through each bulb be in a parallel circuit with two bulbs?

Back

The current through each bulb would be 5A.

Front

What is voltage measured in?

Back

Voltage is measured in volts.

Front

Which material is a conductor?

Back

Iron is a conductor.

Front

What is the definition of a circuit?

Back

A circuit is a closed loop that allows electricity to flow.

Front

What is the role of a resistor in a circuit?

Back

A resistor limits the flow of electric current.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected end-to-end, while in a parallel circuit, components are connected across common points.

Front

What happens to the total resistance in a series circuit when more resistors are added?

Back

The total resistance increases when more resistors are added in series.

Front

What is Ohm's Law?

Back

Ohm's Law states that voltage equals current times resistance (V = I × R).