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Ch 17: Chapter 17: Mechanical Waves and Sound

About This Chapter

The Mechanical Waves and Sound chapter of this Prentice Hall Physical Science Companion Course helps students learn the essential physical science lessons of mechanical waves and sound. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Mechanical Waves and Sound textbook chapter.

How It Works:

  • Identify the lessons in Prentice Hall Physical Science's Mechanical Waves and Sound chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the topics on mechanical waves and sound that you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Factors impacting the speed of sound
  • Volume and pitch of sound waves
  • Doppler effect and its applications
  • Vibrations and wave cycles
  • Resonance of light and sound waves
  • Difference between longitudinal and transverse waves
  • Wavelength, amplitude and other wave parameters
  • Reflection of waves
  • Distinction between specular reflection and diffuse reflection
  • Examples of refracted waves
  • Impact of wavelength on diffraction
  • Distinction between constructive interference and destructive interference

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12 Lessons in Chapter 17: Chapter 17: Mechanical Waves and Sound
Test your knowledge with a 30-question chapter practice test
What is Sound? - Definition and Factors Affecting the Speed of Sound

1. 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.

Pitch and Volume in Sound Waves

2. Pitch and Volume in Sound Waves

What do pitch and volume mean when talking about sound waves? Further your understanding of sound waves in this lesson as we explore the more familiar aspects of sound. We'll learn about pitch and volume and how they relate to sound wave parameters.

The Doppler Effect: Definition, Examples & Applications

3. 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.

Vibrations and Waves: Energy and Motion

4. 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.

Resonance: Definition & Transmission of Waves

5. Resonance: Definition & Transmission of Waves

This lesson describes how sound and light waves are affected by the principle of resonance. Learn how resonance occurs through the vibrations and resonant frequencies of objects. You'll investigate everyday examples of resonance and learn how to break a wine glass with your voice!

Transverse & Longitudinal Waves: Definition & Examples

6. Transverse & Longitudinal Waves: Definition & Examples

What comes to mind when you think of a wave? Chances are your mental image takes the form of a transverse wave. But, longitudinal waves are just as important, and understanding the difference is vital to learning about waves. In this lesson, explore both types of waves and the unique characteristics of each.

Wave Parameters: Wavelength, Amplitude, Period, Frequency & Speed

7. 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.

Reflection: Angle of Incidence and Curved Surfaces

8. Reflection: Angle of Incidence and Curved Surfaces

How do waves reflect off of surfaces? How do we account for the images that we see reflected in various objects? Discover the answers to these questions as we investigate the rays and angles defining the law of reflection.

Diffuse Reflection: Definition, Examples & Surfaces

9. Diffuse Reflection: Definition, Examples & Surfaces

This lesson explores the law of reflection and how it applies to different surfaces and wave types. We'll learn the difference between specular and diffuse reflection and investigate how diffuse reflection affects our perception of sound and light.

Refracted Wave: Definition & Overview

10. Refracted Wave: Definition & Overview

This lesson will explain what a refracted wave is, and how it works. We will also discuss why exactly it happens in the context of wave speed. A short quiz will follow.

Diffraction: Relation to Sound & Light and Effects of Wavelength

11. Diffraction: Relation to Sound & Light and Effects of Wavelength

This lesson explores diffraction as one of the many behaviors of waves. Learn how diffraction occurs in sound and light waves and how it is affected by the wavelength of a wave. Find out how animals use diffraction to communicate and how scientists use it to study molecules.

Constructive and Destructive Interference

12. Constructive and Destructive Interference

What happens when one wave meets another? Do the waves converge to make one giant wave? Or, do they destroy each other? In this lesson, we'll explore the workings of wave interference.

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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