Electricity and Magnetism

Front

What happens to the brightness of bulbs in a series circuit when more bulbs are added?

Back

The other bulbs get dimmer.

Front

How can you complete an incomplete circuit shown in a diagram?

Back

By placing a wire from Point A to Point D.

Front

What size resistor is needed to produce a 3 Amp current flow with a 12 Volt battery?

Back

4 Ohms.

Front

What do like poles of magnets do to each other?

Back

They repel.

Tags

NGSS.3-PS2-3

Front

What is the purpose of a switch in an electric circuit?

Back

To allow the circuit to be opened or closed.

Front

What is an electric circuit?

Back

A closed loop that allows electric current to flow.

Front

What is the unit of electric current?

Back

Ampere (A).

Front

What is the relationship between voltage, current, and resistance in a circuit?

Back

Ohm's Law: V = I × R.

Front

What is a parallel circuit?

Back

A circuit where components are connected across common points, allowing multiple paths for current.

Front

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

Back

The total resistance increases.