About This Chapter
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- Have fallen behind in understanding electrical charges and forces, units and types of electrical currents or working with basic electrical concepts.
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- Start at the beginning, or identify the topics that you need help with.
- Watch and learn from fun videos, reviewing as needed.
- Refer to the video transcripts to reinforce your learning.
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Students will review:
In this chapter, you'll learn the answers to questions including:
- How do electrical charges and forces work?
- What is the significance of arrow direction and spacing in electrical force fields?
- How does Coulomb's law explain electrical relationships?
- What makes electrical charges work?
- How do conductors and insulators differ?
- What are some everyday sources of voltage?
- What are the different types of electric current?
- How does electrical resistance work?
- What are the guiding principles behind Ohm's Law?
- How do electrical circuits work?
- What is the definition of electric power?
1. Electric Charge and Force: Definition, Repulsion & Attraction
Electricity is created by the electric charge that electrons and protons possess. Explore atoms and electric charge, ions, conservation of charge, forces between charged particles, and static electricity.
2. Electric Force Fields and the Significance of Arrow Direction & Spacing
Electric force fields exist not only in science fiction movies, but also in everyday life, at the atomic level. In this lesson, dive into electric force and what exactly is significant about arrow direction and spacing in electric field diagrams.
3. Coulomb's Law: Variables Affecting the Force Between Two Charged Particles
In the 18th century, Charles Coulomb uncovered the secrets of electrostatic force between two charged particles, including the effect of particle charge and the combined effects of charge and distance. In this lesson, dive into the definition of a coulomb as a unit of charge and the variables that affect the force between two charged particles.
4. Electric Potential: Charge Collections and Volt Unit
Charge collections, or groups of charged particles, determine electric potential. Learn about charge collections, volt units, the effect of charge density, and how voltage is created and measured.
5. Insulators and Conductors: Examples, Definitions & Qualities
Not all atoms and materials conduct electricity the same way. Define conductivity, learn about insulators and conductors, and understand that good electrical conductors also act as good heat conductors.
6. Voltage Sources: Energy Conversion and Examples
Electrons are motivated to power circuits through voltage sources, which can be clearly seen in batteries and other everyday items. Generators can come in the form of nuclear, coal, natural gas, hydroelectric, and wind power to generate voltage. In this lesson, learn about energy conversion, voltage, voltage sources, and examples of these things in everyday life, including batteries and generators.
7. What is Electric Current? - Definition, Unit & Types
Electrical current involves the flow of charged particles, or electrons, and it is an integral part of electricity. In this lesson, we will dive into the definition of current, as well as the unit and types to understand just how electricity moves.
8. Electrical Resistance: Definition, Unit & Variables
Electrical resistance refers to the force that impedes electrons in an electrical current flowing through a conductor. Explore the causes of electrical resistance, the various factors that can affect the resistance of different objects, as well as the practical applications of objects with high resistance.
9. Ohm's Law: Definition & Relationship Between Voltage, Current & Resistance
Ohm's Law describes the relationship between voltage, current, and resistance. Learn about Ohm's Law and understand this relationship, including its importance. Use the Ohm's Law equation to calculate the values of voltage, current, and resistance.
10. Electric Circuit Fundamentals: Components & Types
Electric circuit fundamentals include components of two types of circuits. Explore the differences between series and parallel circuits and how voltage, total resistance, and current are affected in each type of circuit when more resistances are added.
11. What is Electric Power?
Electric power and its ability to measure energy in watts has become something that technical and non-technical people can understand quite easily. This lesson considers electric power, watts, current, voltage, resistance, and all of these variables' relation to each other.
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Other chapters within the High School Physical Science: Help and Review course
- Physical Science - Understanding Matter: Help and Review
- Physical Science - Understanding Gases: Help and Review
- The Atom & Atomic Structure: Physical Science Help & Review
- Physical Science - The Periodic Table: Help and Review
- Physical Science - Understanding Chemical Bonding: Help and Review
- Physical Science - Understanding Solutions: Help and Review
- Physical Science - Stoichiometry: Help and Review
- Help & Review for Chemical Reactions, Acids & Bases in Physical Science
- Physical Science - Atomic and Nuclear Physics: Help and Review
- Physical Science - Understanding Motion: Help and Review
- Physical Science - Force, Motion, and Newton's Laws: Help and Review
- Energy, Power, Work & Thermodynamics: Help & Review
- Physical Science - Waves, Sound, and Light: Help and Review
- Physical Science - Thermal Physics: Help and Review
- Physical Science - Magnetism: Help and Review
- Physical Science - Intro to Organic Chemistry: Help and Review
- Physical Science - The Universe: Help and Review
- Physical Science - Atmospheric Science: Help and Review
- Physical Science - Geologic Time: Help and Review
- The Earth's Internal Structure: Physical Science Help & Review
- Physical Science - Plate Tectonics: Help and Review
- Physical Science - Minerals and Rocks: Help and Review
- Physical Science - Igneous Rocks: Help and Review
- Physical Science - Sedimentary Rocks - A Deeper Look: Help and Review
- Physical Science - Metamorphic Rocks - A Deeper Look: Help and Review
- Physical Science - Volcanoes: Help and Review
- Physical Science - Earthquakes: Help and Review
- Physical Science - Weathering and Erosion: Help and Review
- Physical Science - Water Balance: Help and Review
- Physical Science - Ground Water: Help and Review
- Physical Science - Coastal Hazards: Help and Review