# Ch 4: Waves and Optics

Use our video lessons as you study the workings of the various types of light and sound waves. These video lessons are short and engaging and make learning easy!

## Waves and Optics

Sound and light surround you at all times and you rely on them for safety, communication and entertainment. You can learn all about the various types of light and sound waves through this chapter. These lessons are designed to teach you:

• Snell's law
• The features of light
• Regions of the electromagnetic spectrum
• The Doppler Effect
• Factors affecting sound

Video Objective
Refraction & Dispersion: Definition, Snell's Law & Index of Refraction Explore the relationships within refractions through Snell's law.
Transparent and Opaque Materials in Electromagnetic Waves Explain the differences between these two types of materials and their effects on electromagnetic waves.
Color: White Light, Reflection & Absorption Learn that white light is formed from all colors and how our color perception is influenced.
Resonance: Definition & Transmission of Waves Explain how sound and light are affected by resonance.
The Nature of Light: Origin, Spectrum & Color Frequency Learn about the six color ranges and how people perceive colors differently.
Diffuse Reflection: Definition, Examples & Surfaces Compare diffuse and specular reflection.
The 7 Major Regions of the Electromagnetic Spectrum Explore radio waves, microwaves, visible light rays, ultraviolet light rays, x-rays, infrared radiation and gamma rays.
Reflection: Angle of Incidence and Curved Surfaces Learn about the angles and rays that govern the law of reflection.
Electromagnetic Waves: Definition, Sources & Properties Discuss the aspects of these waves and their sources.
The Doppler Effect: Definition, Examples & Applications Study the occurrence of the Doppler Effect in sound, light and water waves.
Pitch and Volume in Sound Waves Define amplitude, intensity and volume.
What is Sound? - Definition and Factors Affecting the Speed of Sound Explain how sound waves travel and what affects their speed.
Wave Parameters: Wavelength, Amplitude, Period, Frequency & Speed Learn about the five parameters used to measure waves.
Transverse & Longitudinal Waves: Definition & Examples Compare longitudinal and transverse waves. Define seismic waves.
Vibrations and Waves: Energy and Motion Discover how waves begin and how they carry energy.
Diffraction: Relation to Sound & Light and Effects of Wavelength Explain how diffraction takes place in light and sound waves. Discuss how animals use diffraction for communication.
Constructive and Destructive Interference Compare constructive and destructive interference. Discuss standing waves.
Mirrors: Plane & Spherical Compare the two basic types of mirrors.
Ray Tracing Mirrors Explain how ray tracing provides geometric explanations for images formed in spherical and plane mirrors.
Using Equations to Answer Mirror Questions Calculate mirror problems with equations.
Thin Lenses Explain thin lens approximations.
Using Equations to Answer Images Questions Explain images issues with the help of equations.

22 Lessons in Chapter 4: Waves and Optics
Test your knowledge with a 30-question chapter practice test
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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