About This Chapter
MTTC Physical Science: Electromagnetism - Chapter Summary
You can't get a grip on electromagnetism unless you first go over the essential principles of both electricity and magnetism. This chapter provides a study guide about both areas and discusses how those areas combine into electromagnetism, which you will need to know about for physics questions on the MTTC Physical Science exam. After going through these lessons, you should be ready to take on any test questions about the following:
- Coulomb's law
- Qualities of insulators
- Properties of superconductors and semiconductors
- Parallel, electric, and series circuits
- Charge collections and units for voltage
- The creation of magnetic fields
- Electromagnetic induction
It may have been a while since you have gone over the key aspects about electromagnetism. No need to worry, because this refresher chapter can get you up to speed and ready to answer any related questions on the MTTC Physical Science exam. We design our lessons to build up and reinforce your knowledge base. Start the first lesson and watch each of them in order. You can repeat the lessons if necessary and you can pause if you need to take some notes or reread the info in the transcripts. The lessons are brief, so getting through them won't take very long. If your study time is limited, you may appreciate that our shorter lessons allow you to get through one major topic at a time, making you feel more productive and more confident.
1. Coulomb's Law: Variables Affecting the Force Between Two Charged Particles
In the 18th century, Charles Coulomb uncovered the secrets of electrostatic force between charged particles. The results of his experiments led to what is now known as Coulomb's Law, which tells us how force, charge, and distance are all related.
2. Insulators and Conductors: Examples, Definitions & Qualities
In this lesson, we'll explore the reasons that some materials conduct electrical energy with ease while others block it almost completely. We'll also talk about the property of conductivity and some everyday examples of insulators and conductors.
3. Semiconductors & Superconductors: Definition & Properties
Have you ever wondered how an MRI works or how cell phones are able to become more advanced? After completing this lesson, you'll be able to explain what semiconductors and superconductors are and give examples of how they are used.
4. Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance
Did you know that electrical current is affected by the voltage and resistance in a circuit? In this lesson, we'll use Ohm's law, which tells us how current, voltage, and resistance are related, as we work through several electric circuit examples.
5. Electric Circuit Fundamentals: Components & Types
Electric circuits can be configured to power several loads, such as light bulbs, in series or in parallel. In this lesson, we'll look at both types of circuits and see how the voltage, current, and resistance are affected by installing additional loads.
6. Parallel Circuits: Definition & Concepts
People moving through an airport are similar to electrons moving through a circuit. Parallel circuits are one type of simple circuit, and they get their name from the multiple, parallel paths they provide for electron flow.
7. Series Circuits: Definition & Concepts
When you flip a switch to turn your lights on, you are completing a circuit and providing a pathway for electrons to flow. In this lesson, you'll learn how connecting devices in a series along that circuit affects the current and resistance throughout.
8. Resistor-Capacitor (RC) Circuits: Definition & Explanation
Resistor-capacitor (RC) circuits are everywhere because they are useful in our everyday lives. The current in these circuits varies with time, making them both practical and common in many types of electronic equipment.
9. Electrical Circuits: Energy Transfer & Conservation
After completing this lesson, you will be able to explain what an electric circuit it, how energy transfers in a circuit, and how circuits relate to the conservation of energy. A short quiz will follow.
10. Electric Potential: Charge Collections and Volt Unit
In this lesson, we'll find out that electric charges can be rather lazy until something motivates them to get work done. Find out what gives electric charges the potential to do work and how we measure that potential with something called voltage.
11. What is a Magnetic Field?
Magnetic fields fill the space around all magnets, but they're impossible to detect with our own senses. We'll use a common tool to map out a magnetic field and then discuss ferromagnetic materials to see how a magnetic field can be used to create new magnets.
12. How Magnetic Fields Are Created
Have you ever wondered how magnetic fields are created? In this lesson, we'll discuss the very simple answer to this question and look at how electric current can be used to make electromagnets, which have many everyday applications.
13. Magnetic Force: Definition, Poles & Dipoles
You're probably familiar with magnets, but have you ever stopped to consider how they work? In this lesson, we'll look at the root of magnetism and some of the fundamental properties of magnets.
14. How Magnetic Forces Affect Moving Charges
A magnetic field exerts a force on a moving charged particle in ways that you might not expect. In this lesson, we're going to look at the direction of this force and the factors that affect its strength.
15. The Role of Magnetic Force in Technological Devices
After completing this lesson, you will be able to explain what magnetic forces are, and describe various technological devices that use magnets. A short quiz will follow.
16. Electromagnetic Induction: Conductor to Conductor & Transformers
Every day, we make use of a special case of electromagnetic induction known as mutual induction. In this lesson, we'll talk about this special phenomenon and how it is used in many common devices.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the MTTC Physical Science (097): Practice & Study Guide course
- MTTC Physical Science: Scientific Inquiry
- MTTC Physical Science: Conducting Research
- MTTC Physical Science: Interpreting Data
- MTTC Physical Science: Laboratory Safety
- MTTC Physical Science: Society & Scientific Progress
- MTTC Physical Science: Interdisciplinary Science
- MTTC Physical Science: Chemical Properties of Matter
- MTTC Physical Science: Physical Properties of Matter
- MTTC Physical Science: Chemical Bonds
- MTTC Physical Science: Chemical Reactions
- MTTC Physical Science: Stoichiometry
- MTTC Physical Science: Analytical Techniques
- MTTC Physical Science: Forces & Motion
- MTTC Physical Science: Work, Power & Energy
- MTTC Physical Science: Conservation Laws & Thermodynamics
- MTTC Physical Science: Waves & Wave Motion
- MTTC Physical Science: Electromagnetic Waves & Spectrum
- MTTC Physical Science: Modern Physics
- MTTC Physical Science Flashcards