Physics: Electric Systems, Magnetism and Sound
Learn about the main principles of electric systems, magnetism and sound in this free online physics course.
Take this certificate on your own.
Start now and learn at your own pace.
CertificationView course modules
This free online physics course begins with an introduction to electric systems. You will learn about current, charge and voltage and study examples of power calculations. You will then move on to look at circuits, exploring different examples of parallel circuits. The course then moves on to study capacitors and how they are used to store and release electrical charge, as well as AC to DC conversion.
You will also study transducers, including thermistors and light-emitting diodes before moving on to explore magnets and magnetism. Here you will look at magnetic fields, including the Earth’s magnetic field, currents and magnetism and how charges move in magnetic fields. You will also study the forces on current-carrying wires, electromagnetic induction - how magnetic fields can be used to create an electric current - and generators.
Finally you will move on to study sound. An introduction will take you through sound’s nature as a wave and how they are created. You will also explore standing sound waves and the intensity of sound, where you will look into amplitude and loudness plus intensity versus distance. This course will give you a grounding in some of the basic principles of physics and will be of interest to anyone who wants to study the field or take the first steps on a career in science.Start Course Now
Electric Systems, Magnetism and Sound
Electric Systems, Magnetism and Sound - Learning Outcomes
Introduction to Electric Systems
Electric Systems and Circuits
Capacitors and AC to DC Conversion
Magnets and Magnetism
Sound Standing Waves
Intensity of Sound
Electric Systems, Magnetism and Sound - Lesson Summary
Having completed this course you will be able to:
- Understand electric systems and the relevance of current, voltage and charges
- Design and calculate the values in a circuit using either series or parallel types of connections
- Understand the working principles of capacitors and transducers
- Identify magnetic fields and how moving charges in a magnetic field affects the earth and objects
- Understand how DC and AC motors operate
- Identify, create and calculate sound waves using the wave equation
All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire an official Certificate, which is a great way to share your achievement with the world. Your Alison Certificate is:
Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning
Alison offers 3 types of Certificates for completed Certificate courses:
Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
Framed Certificate - a physical version of your officially branded and security-marked Certificate in a stylish frame, posted to you with FREE shipping
All Certificates are available to purchase through the Alison Shop. For more information on purchasing Alison Certificates, please visit our FAQs. If you decide not to purchase your Alison Certificate, you can still demonstrate your achievement by sharing your Learner Record or Learner Achievement Verification, both of which are accessible from your Dashboard. For more details on our Certificate pricing, please visit our Pricing Page.