Electricity and Magnetism Study Guide

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects, often caused by friction. An example is a balloon sticking to a wall after being rubbed with wool.

Front

What is an insulator?

Back

An insulator is a material that does not allow electrons to flow easily. Examples include rubber, glass, and plastic.

Front

How can you measure the strength of an electric charge?

Back

You can measure the strength of an electric charge by counting the number of pieces of paper a charged object can pick up.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electric current to flow, consisting of a power source, wires, and a load (like a light bulb).

Front

What is the role of a switch in a circuit?

Back

A switch controls the flow of electricity in a circuit, allowing you to turn devices on or off.

Front

What is a conductor?

Back

A conductor is a material that allows electrons to flow easily. Examples include metals like copper and aluminum.

Front

What is the source of electric current in a circuit?

Back

The source of electric current is typically a battery or power supply that provides the energy needed for the circuit to function.

Front

What happens when you rub a balloon on your hair?

Back

Rubbing a balloon on your hair transfers electrons, giving the balloon a negative charge, which can attract small objects.

Front

What is a load in an electric circuit?

Back

A load is any device that uses electrical energy to perform work, such as a light bulb or motor.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected one after another, so the same current flows through all. In a parallel circuit, components are connected across the same voltage source, allowing multiple paths for current.