Introduction to Electricity – Lesson Summary

This is a lesson summary. The full lesson can be viewed by purchasing an online course subscription.

Learning Objective

In this lesson we will learn what electricity is and look at the two forms in which it can exist.

Learning Outcomes

By the end of this lesson you will be able to:

  • Explain how electric charge can be transferred between atoms.

  • Define electricity.

  • Define electrical energy and explain how it can be converted into other forms of energy.

  • Describe static electricity and current electricity, and compare their usefulness.

 
introduction to electricity

(Image: mohamed_hassan, Pixabay)

Lesson Topics

1 | Electric Charge

2 | Electricity

3 | Static Electricity

4 | Current Electricity

5 | Summary

Lesson Summary

  • Atoms contain positively charged protons and negatively charged electrons, as well as uncharged neutrons.
  • Sometimes electrons can move between atoms, transferring electric charge.
  • Electrical energy is a form of energy resulting from the presence of charged particles.
  • Electricity is the transmission of electrical energy through the movement of charged particles.
  • Electrical energy can be transformed into other forms of energy, such as heat, light and sound.
  • Static electricity results from a build-up of electric charge.
  • It has limited practical applications.
  • Current electricity is the flow of electric charge.
  • It can be used to power electrical devices.

 
electricity power lines

(Image: jplenio, Pixabay)

(Header image: panimoni, Adobe Stock)