Electricity and Electric Circuits

Front

What is an atom?

Back

An atom is the basic unit of matter, consisting of a nucleus made of protons and neutrons, surrounded by electrons in an outer shell.

Front

What determines the charge of an atom?

Back

The charge of an atom is determined by the number of protons (positive charge) and electrons (negative charge) it contains.

Front

If an atom has more electrons than protons, what is its charge?

Back

Negative.

Front

What is a neutral atom?

Back

A neutral atom has an equal number of protons and electrons, resulting in no overall charge.

Front

How many electrons does an atom with 3 protons have if it is neutral?

Back

3 electrons.

Front

What is an electric circuit?

Back

An electric circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load.

Front

What is a series circuit?

Back

A series circuit is a type of circuit where components are connected end-to-end, so the same current flows through all components.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of circuit where components are connected across common points, allowing multiple paths for current to flow.

Front

What happens when a light switch is turned 'on'?

Back

When the switch is 'on,' it closes the circuit, allowing electric current to flow to the light bulbs.

Front

What happens when a light switch is turned 'off'?

Back

When the switch is 'off,' it opens the circuit, interrupting the flow of electric current to the light bulbs.