About This Chapter
Overview of Waves - Chapter Summary
Work through these helpful study resources to review the fundamentals of light and sound waves. Our lessons are taught by expert instructors who simplify complex wave concepts, such as wave parameters, standing waves, the Doppler effect and the superposition principle. The chapter also helps you describe the origins and motion of waves. After finishing the chapter, you should be able to:
- Explain the causes and motion of waves
- Identify the characteristics of five wave parameters
- Recognize factors that affect wave propagation
- Understand how sound waves travel
- Break down Isaac Newton's formula for longitudinal waves
- Summarize the theory behind standing waves
- Evaluate the superposition principle in relation to standing and resultant waves
- Determine how the Doppler effect influences the way we perceive light and sound
This chapter is designed to present important wave concepts in an engaging and straightforward manner. This way, you can quickly review the information and commit it to memory. We've included self-assessment quizzes to help you further solidify your understanding of the material. If you have any questions, feel free to reach out to our instructors. You can access these lessons at any time that fits your schedule and keep track of your progress throughout the chapter using your course Dashboard feature.
1. Vibrations and Waves: Energy and Motion
What is a wave? What causes waves, and how do they travel from one place to another? This lesson will guide you through the basics of waves. We'll discuss their origins from vibrations and investigate how they carry energy through a medium.
2. Wave Parameters: Wavelength, Amplitude, Period, Frequency & Speed
How do we measure and describe waves? How do waves differ based upon their shapes? This lesson will guide you through the five wave parameters - period, frequency, amplitude, wavelength, and speed - that we use to characterize waves.
3. Wave Propagation
After watching this video, you will be able to explain what wave propagation is, and describe the factors that affect the speed of wave propagation. A short quiz will follow.
4. What is Sound? - Definition and Factors Affecting the Speed of Sound
Explore the minute workings of sound waves and how they travel. We'll discuss the main factors that affect the speed of sound waves, and we'll try some mathematical problems involving the wave equation.
5. Newton's Formula for Longitudinal Waves: Definition & Examples
Longitudinal waves are waves that move in the same direction of the propagation of a wave. In this lesson, you will become familiar with Newton's formula that involved this type of wave and with common examples that we experience in everyday life.
6. Standing Wave: Definition, Equation & Theory
In this lesson, you'll learn about the kind of waves that are responsible for our experience of musical notes. These waves are called standing waves. Learn what makes them unique and how they represent the notes we hear.
7. The Superposition Principle & Standing Waves
After completing this lesson, you will be able to explain what the superposition principle is, and how this leads to the formation of standing waves. A short quiz will follow.
8. The Superposition Principle & Resultant Waves
After completing this lesson, you will be able to explain what the superposition principle is, and use it to predict what will happen when two waves are combined. A short quiz will follow.
9. The Doppler Effect: Definition, Examples & Applications
What is the Doppler effect? How does it affect our perceptions of sound and light? In this lesson, learn how traveling wave sources can change the way we observe sound and light waves. Explore the applications of the Doppler effect on shock waves, sonic booms, and the movements of distant galaxies.
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