About This Chapter
Michigan Merit Exam: Sound & Light Waves - Chapter Summary
Learn about the nature of waves, sound and light, and the electromagnetic spectrum as you review for this 11th grade assessment. This in-depth chapter includes lessons on:
- Types and features of waves
- Speed, pitch and volume of sound
- Electromagnetic waves
- The electromagnetic spectrum
- Reflection, refraction and dispersion
- Light origin, spectrum, and color frequency
- The nature of color
- Colors of the Sun
Your comprehension of this material can be increased by combining the video lessons with the written transcripts. If you need to review a particular video topic, the interactive timeline feature enables you to skip straight to it. Our lesson quizzes and practice exams are there to help ensure you are retaining the necessary information for test day.
Michigan Merit Exam: Sound & Light Waves Chapter Objectives
The multifaceted Michigan Merit Exam is designed to test the academic development of 11th-grade public school students in Michigan every spring. This chapter on sound and light waves is relevant to the computer-based M-Step science test, which is one part of the larger exam. The M-Step science test is not time limited but has an estimated duration of 50 minutes.
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. 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.
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. 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.
6. Electromagnetic Waves: Definition, Sources & Properties
In this lesson, learn the basics of electromagnetic waves and how they make up the electromagnetic spectrum. We will explore the major trends and categories within the spectrum, as well as the various sources of electromagnetic waves.
7. The 7 Major Regions of the Electromagnetic Spectrum
This lesson will walk you through each of the major regions of the electromagnetic spectrum. Explore the unique characteristics of X-rays, microwaves, radio waves, UV rays, infrared, gamma rays, and of course, visible light.
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.
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.
10. Refraction & Dispersion: Definition, Snell's Law & Index of Refraction
Refraction explains why light bends in water. But, did you know that mathematical laws determine exactly how light waves are bent? In this lesson, we'll explore the mechanics of wave refraction, including Snell's Law and the index of refraction.
11. The Nature of Light: Origin, Spectrum & Color Frequency
This lesson introduces the basics of visible light and color. Learn how the visible light spectrum is divided into the six color ranges. We'll also discuss why different people name colors in different ways.
12. Color: White Light, Reflection & Absorption
What gives color to objects? How do light waves interact with materials to produce red and green or white and black? In this lesson, learn how white light is composed of all colors and how absorption and reflection influence our color perception.
13. Why the Sun Changes Color
The Sun does not change its true color. However, the way we observe the Sun on Earth makes it appear that the sun changes color. Why this is so is outlined in this lesson.
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