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Ch 18: Modern Physics Principles & Theories

About This Chapter

You can learn what you need to know to know about modern physics principles and theories by studying our chapter and using our resources. Watch these short lessons as many times as you need to prepare for an important exam or for your own personal knowledge.

Modern Physics Principles & Theories - Chapter Summary

If you would like to learn more information about modern physics principles and theories. These lessons help you refresh your understanding of the history of photoelectric effect, application of the photoelectric effect, history of the atom, examples of radioactive substances, and different types of nuclear reactions. The objectives covered by our experienced instructors include:

  • Review information about the photoelectric effect
  • Recall the importance of the de Brogile hypothesis
  • Identify the development of the atom
  • Explore the production of light
  • Distinguish the difference between the two types of atomic spectra
  • Explain the differences between nuclear and chemical reactions

Our lessons in this chapter are taught by educated and professional instructors. They know what it takes to pass your exam. As you watch the video lessons and read the lesson transcripts, our instructors are here for you whenever you need it. We make it easy to reach out to them, and they will answer any questions you might have.

7 Lessons in Chapter 18: Modern Physics Principles & Theories
Test your knowledge with a 30-question chapter practice test
The Photoelectric Effect: Definition, History, Application & Equation

1. The Photoelectric Effect: Definition, History, Application & Equation

In this lesson, you will learn what the photoelectric effect is, how it was discovered, how it applies to everyday life, and the equation associated with it. A short quiz will follow.

The de Broglie Hypothesis: Definition & Significance

2. The de Broglie Hypothesis: Definition & Significance

The de Broglie hypothesis states that particles of matter can behave as both waves and particles, just like light. In this lesson, we'll learn the basics of the de Broglie hypothesis and how it related to other theories released at the same time.

Rutherford Model of the Atom: Definition & Diagram

3. Rutherford Model of the Atom: Definition & Diagram

Though it is no longer the most accurate representation of an atom, at the time Rutherford's model was revolutionary. Learn about the development of the model of the atom and how it changed throughout history, then assess your knowledge with a quiz.

The Bohr Model and Atomic Spectra

4. The Bohr Model and Atomic Spectra

Do you ever wonder where light comes from or how it is produced? In this lesson, we are going to use our knowledge of the electron configurations and quantum numbers to see what goes on during the creation of light.

Atomic Spectrum: Definition, Absorption & Emission

5. Atomic Spectrum: Definition, Absorption & Emission

In this lesson, we'll discuss the meaning of the term 'atomic spectrum' and distinguish between the two main types of atomic spectra: absorption and emission spectra. We'll also describe how each forms.

What Are Radioactive Substances? - Examples & Uses

6. What Are Radioactive Substances? - Examples & Uses

This lesson will explain what a radioactive substance is, give examples of radioactive substances and describe how radioactivity is used in everyday life.

Nuclear Reaction: Definition & Examples

7. Nuclear Reaction: Definition & Examples

Learn the differences between a nuclear reaction and a chemical reaction. Also learn how the nuclear reaction involves subatomic particles including protons and neutrons. Discover the different types of nuclear reactions including fission and fusion and also how a nuclear power plant works to produce energy.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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