Current Electricity Flashcards
What is an electric current?
An electric current is caused by the flow of electrons through a good conductor such as a metal. An electric current is a flow of electric charge.
What does a conductor do?
A good conductor does allow electric current to flow.
What does an insulator do?
A good insulator does not allow electric current to flow.
Light energy?
So we can see in the dark.
What is heat energy for?
It’s so we can cook/heat buildings.
What is kinetic energy for?
For electric motors.
Sound energy?
Sound energy is for music.
What are closed circuits?
A closed circuit is needed for the current to flow.
What is potential difference?
The difference in electrical pressure between the positive and negative ends (of the battery) is called the potential difference. Whenever there is a potential difference electricity will flow. This potential difference is know as voltage and is measured in volts.
