Circuit Basics
What are the three main parts of a simple electric circuit?
power source, wires, and a load
What do we call the flow of electric charge?
Current
What are the two ends of a magnet called?
north and south poles
What do you call a magnet created by electricity?
electromagnet
Which type of circuit allows bulbs to stay lit even if one goes out?
Parallel circuit
This type of circuit has only one path for electricity to flow.
Series Circuit
What happens when you add a bigger battery in a circuit?
increases the brightness of the lightbulb
What happens when you try to push two north poles of magnets together?
they repel
Name one way to make an electromagnet stronger.
increase the number of coils or use a stronger battery
What device can be used to detect the presence of a magnetic field?
compass
What happens if one light goes out in a series circuit?
all the lights go out
This material allows electricity to flow easily.
Conductor
The space around a magnet where magnetic forces are felt is called the _______.
magnetic field
What everyday device uses electromagnets to make sound?
speakers
What kind of energy transformation happens in a circuit that lights a bulb?
electrical energy to light (and heat) energy?
In a parallel circuit, each bulb has its own _______ to the power source.
path
This material does not allow electricity to flow easily.
Insulator
Name a metal that is attracted to magnets.
iron
Electromagnets are used to lift heavy metal objects in this place.
junkyard or scrapyard
What happens to the brightness of bulbs in a series circuit when more bulbs are added?
the bulbs get dimmer
This device is used to open or close a circuit.
Switch
What do we call the opposition to the flow of current in a circuit?
What happens when you break a magnet in half?
you get two smaller magnets, each with a north and south pole?
In an electric motor, what does the electromagnet interact with to produce motion?
magnetic field of permanent magnets
True or False: Only metals can be magnetized.
false (Only certain metals like iron, nickel, and cobalt can be magnetized.)