About This Chapter
How it works:
- Begin your assignment or other GED science work.
- Identify the magnetism concepts that you're stuck on.
- Find fun videos on the topics you need to understand.
- Press play, watch and learn!
- Complete the quizzes to test your understanding.
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This chapter of our GED science tutoring solution will benefit any student who is trying to learn magnetism and earn better grades. This resource can help students including those who:
- Struggle with understanding magnetic force, moving charges, electromagnetic induction, energy conversions or any other magnetism topic
- Have limited time for studying
- Want a cost effective way to supplement their science learning
- Prefer learning science visually
- Find themselves failing or close to failing their magnetism unit
- Cope with ADD or ADHD
- Want to get ahead in GED science
- Don't have access to their science teacher outside of class
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- Engaging Tutors: We make learning magnetism simple and fun.
- Cost Efficient: For less than 20% of the cost of a private tutor, you'll have unlimited access 24/7.
- Consistent High Quality: Unlike a live GED science tutor, these video lessons are thoroughly reviewed.
- Convenient: Imagine a tutor as portable as your laptop, tablet or smartphone. Learn magnetism on the go!
- Learn at Your Pace: You can pause and rewatch lessons as often as you'd like, until you master the material.
- Define magnetic force.
- Describe magnetic fields.
- Explain how magnetic fields are created.
- Understand how moving charges are affected by magnetic forces.
- List the variables that affect electromagnetic induction.
- Learn how energy is converted between electrical and mechanical energy.
1. 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.
2. 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.
3. 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.
4. 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.
5. Electromagnetic Induction: Definition & Variables that Affect Induction
We use electromagnetic induction every day, but do you have any idea what it is? In this lesson, we'll discuss this everyday phenomenon, the factors that affect its strength and its most common applications.
6. 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.
7. Electric Motors & Generators: Converting Between Electrical and Mechanical Energy
Both generators and electric motors are common devices in everyday life, but how do they work and what is the difference between them? In this lesson, we'll explore both of them, which may produce different results but are actually more similar than they may seem.
8. Event Horizon: Definition & Overview
This lesson will explain the meaning of the term 'event horizon', and discuss the two main types: a black hole event horizon, and the observable universe event horizon. A short quiz will follow.
9. Gravitational Field: Definition & Formula
This lesson defines what a gravitational field is and some practical examples encountered in the real world. We also develop the equations governing the gravitational field and explain what the units of measurement mean.
10. Magnetic Poles: Definition & Shifts
You probably know that magnets have poles, labeled 'North' and 'South.' But do you know why? And did you know that the earth's magnetic poles are not permanent? You will learn about both topics in this lesson.
11. Magnetic Quantum Number: Definition & Example
Electrons in an atom are found within shells. These shells are further divided into subshells, which are further divided into orbitals. In this lesson, we will discuss the magnetic quantum number, which tells us about the orbitals an electron occupies.
12. Magnetic Reversals: Overview
Everybody knows that a compass points north. But do you know why? And would you be surprised to learn that it might point south some day? You will learn about our planet's changeable magnetic field in this lesson.
13. What are Electromagnetic Waves: Definition & Types
Explore electromagnetic (EM) waves, their features and how they differ from other waves. Learn how EM waves are organized on a spectrum based on the amount of energy they produce, from radio waves to gamma rays.
14. What is a Magnet? - Definition & Examples
In this lesson, you will learn what a magnet is and how it works at the atomic level. You'll also see how the earth's magnetic field works. A short quiz will follow.
15. What is an Electromagnet? - Definition, Uses & Parts
In this lesson, you'll learn what an electromagnet is, how it is used in a few real-life situations, and the parts that make it up. A short quiz will follow.
16. What is Electromagnetic Radiation? - Wavelength, Spectrum & Energy
Light, microwaves, X-rays, and cell phone transmissions are all examples of electromagnetic radiation. Read more about this fascinating, mostly invisible phenomenon that has been harnessed by humans for so many purposes. A quiz is included.
17. What is Solenoid? - Definition, Uses & Examples
In this lesson, you will learn what a solenoid is, how it relates to electromagnets, and how it is used in a few real-life situations. A short quiz will follow.
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