About This Chapter
Effects of Fields in Physics- Chapter Summary
Review formulas and laws pertaining to magnetic, electrical and gravitational forces with these video and text lessons. The main focus of this chapter is to address how these forces impact energy and motion and how to calculate these effects. After you have studied the information in this chapter, you should be able to:
- Calculate the strength of electric forces
- Summarize information about the Lorentz Force Law
- List factors that affect the force of a magnetic field
- Use a formula that determines motion in a magnetic field
- Understand the equation used to determine gravitational force
- Determine impulse and speed using force-time and distance-time graphs
- Describe how to determine change in gravitational potential energy
These short and simple lessons make this material accessible while allowing you to study on your own convenient schedule. Your Dashboard helps you track your progress through this chapter and self-assessment quizzes are great tools for measuring your understanding of these topics. You can also easily contact instructors if you have any questions regarding these lessons.
1. Electric Force: Definition & Equation
The electric force is one of the most powerful, fundamental forces in the universe. In this lesson, we will learn how charged objects exert electric forces on each other and how to calculate the strength of that force.
2. The Lorentz Force Law
Electric and magnetic fields are both capable of creating forces on charged particles. In this lesson you'll learn how these two forces are related through the Lorentz force law.
3. 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.
4. Calculating Motion in Magnetic Fields: Formula & Practice
Magnetic fields exert a force on moving charged particles. In this lesson, we will focus on the formula for the magnetic centripetal force acting on an electron. We will also work through some example problems.
5. Gravitational Force: Definition, Equation & Examples
You probably have an idea of what gravity is, but did you know that you, right now, are actually pulling on every other object in the universe? Find out more about the gravitational force and learn an equation to calculate its pull on other objects.
6. Force vs. Time & Force vs. Distance Graphs
In this lesson, you'll find out how to determine impulse from a force-time graph and speed from a distance-time graph. You'll also learn how to describe the general shape of these graphs for simple harmonic motion.
7. Change in Gravitational Potential Energy: Graphs & Analysis
We'll explore how to find an object's change in gravitational potential energy as it moves in relation to a zero reference point. We'll do this visually with gravitational force vs. distance graphs and gravitational field vs. distance graphs.
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Other chapters within the VCE Physics: Exam Prep & Study Guide course
- Overview of Thermodynamics
- Thermodynamics & Climatology
- Energy Conservation & Efficiency
- Modeling Electricity
- Circuit Electricity
- Electronic Device Use & Safety
- Electricity Generation & Transmission
- Origins of the Universe
- Subatomic Particles in the Nucleus
- Atomic Energy
- Modeling Motion
- Force & Motion in Physics
- Energy & Motion in Physics
- Laws of Motion Applied Problem Solving
- The Theory of Relativity
- Interactions of Fields in Physics
- Applications of Fields in Physics
- Properties of Mechanical Waves
- Light as an Electromagnetic Wave
- Wave-Particle Duality & Quantum Mechanics
- Conducting a Scientific Investigation
- Scientific Investigation for the VCE Physics Exam
- VCE Physics Flashcards