About This Chapter
GACE Physics: Waves, Sound & Light - Chapter Summary
See what makes our instructors qualified to help you prepare for the GACE Physics assessments. This Waves, Sound and Light chapter will address topics such as Snell's law, opaque materials and the electromagnetic spectrum in depth. Refresh your memory of the following:
- Energy, motion, vibrations and waves (including transverse and longitudinal)
- Parameters and transmissions of waves, including: wavelength, amplitude, period, frequency and speed
- Factors that affect the speed of sound
- 7 Major regions of the electromagnetic spectrum
- Properties of light
- Angles of incidence and curved surfaces and their impact on reflection
- Transparent and opaque materials
- Color reflection and absorption
- Refraction and dispersion, including Snell's law
- Diffraction's effects on wavelength
- The meanings of constructive and destructive interferences
- Applications of the Doppler effect
- Examples of wave-particle duality
Use our text transcripts as a guide to make your studying more efficient! Our video lessons are highly accessible and equipped with a unique tagging system that makes jumping to specific topic points easier and more efficient.
Objectives of the GACE Physics: Waves, Sound & Light Chapter
The topics in this chapter will confirm and enhance your existing knowledge as well as introduce you new or unfamiliar concepts that will be tested on the GACE Physics assessments. Both Test I and II will assess your understanding of 6-12th grade level physics in order to determine your ability and eligibility to teach middle or high school science courses in the state of Georgia.
Your knowledge of sound and light waves will be tested in the Optics and Waves subarea (32% of Test II). The self-assessment quizzes provided at the end of each lesson will test your comprehension of the information covered on the exam and also give you insight to the types of questions you'll encounter on test day.
1. Vibrations and Waves: Energy and Motion
When an object is manifesting a repetitive motion over the same path in a rhythmic way, it is vibrating, which means waves are being formed. Learn about vibrations and waves, amplitude and energy.
2. Wave Parameters: Wavelength, Amplitude, Period, Frequency & Speed
Wave parameters refer to the different ways waves are measured. Examine how waves are characterized by wavelength, amplitude, period, frequency, and/or speed.
3. Transverse & Longitudinal Waves: Definition & Examples
In transverse waves, particles of a medium move perpendicular to the wave's direction of travel and in longitudinal waves, the particles move parallel. Explore the definition and examples of these waves, how they travel through solids, liquids, and gasses, and learn about seismic waves.
4. What is Sound? - Definition and Factors Affecting the Speed of Sound
Sound is a longitudinal wave that travels through various states of matter, like solids, and not through a vacuum. Discover the definition and factors affecting the speed of sound including nature of sound waves, mediums, and the wave equation.
5. Pitch and Volume in Sound Waves
In sound waves, pitch is the frequency of sound and volume is the intensity of sound. Explore the parameters of sound, the definitions of amplitude, intensity, and frequency, and the acoustic range.
6. Electromagnetic Waves: Definition, Sources & Properties
Electromagnetic waves are both electric and magnetic, and can travel without a medium. Learn about the definition, sources, and properties of electromagnetic waves.
7. The 7 Major Regions of the Electromagnetic Spectrum
Unlike some other waves, electromagnetic waves don't require a medium to travel. This lesson delves into the frequencies of the electromagnetic spectrum including infrared, ultraviolet, microwaves, X-rays, radio waves, and gamma rays.
8. The Nature of Light: Origin, Spectrum & Color Frequency
The nature of light includes visible light and color. Explore the origin, spectrum, and color frequency of light and learn about the six color ranges and people's perception and naming of color.
9. Reflection: Angle of Incidence and Curved Surfaces
The reflection of waves occurs when a wave changes direction after it hits a surface. Explore incident and reflected rays, the law of reflection, and reflection off curved surfaces.
10. Diffuse Reflection: Definition, Examples & Surfaces
When rays hit a rough surface, their reflections go in diverse directions. This phenomenon is called diffuse reflection. Learn its definition, its difference from specular reflection, and different examples of diffuse reflection in sound and light waves.
11. Resonance: Definition & Transmission of Waves
Resonance is when the amplitude of an object's oscillations is increased by the matching vibrations of another object. Explore the definition, transmission of waves, resonate frequency, and resonance in music.
12. Transparent and Opaque Materials in Electromagnetic Waves
Transparency and opacity describe interactions in regions throughout the electromagnetic spectrum. Explore the differences between transparent and opaque materials, their relation to transmission and reflection, and non-visible wave types.
13. Color: White Light, Reflection & Absorption
When you perceive color, what you're really seeing is how white light is reflected or absorbed by an object to produce different visible light frequencies. This lesson investigates the properties of white light, the color spectrum, the process of selective absorption and reflection, and how pigments work in living things.
14. Refraction & Dispersion: Definition, Snell's Law & Index of Refraction
When a light wave passes from one medium into another, it changes direction in a process called refraction. This lesson investigates the properties of refraction, including the index of refraction and the ratio known as Snell's Law.
15. Diffraction: Relation to Sound & Light and Effects of Wavelength
Diffraction describes a unique behavior of waves where they bend as they travel through certain mediums. Explore the diffraction of sound and light, and the effects of wavelength on diffraction.
16. Constructive and Destructive Interference
When two waves meet while traveling in the same medium, they disrupt each other in a process called interference, which produces an entirely new wave. Discover the two types of interference, constructive and destructive, and learn how a single wave can interfere with itself.
17. The Doppler Effect: Definition, Examples & Applications
The Doppler effect explains why a sound's pitch seems to change depending on whether it's coming towards you or moving away from you. This lesson investigates how the Doppler effect works, and how it can be applied to the behavior of both sound waves and light waves.
18. Wave-Particle Duality: Concept, Explanation & Examples
When the photoelectric effect was discovered, it challenged the preconceived scientific theory that science that light behaves like a wave. This lesson explores how light can act as both a wave and a particle, and how this discovery led to the theory of wave-particle duality.
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Other chapters within the GACE Physics (530) Prep course
- About the GACE Test
- GACE Physics: History & Nature of Science
- GACE Physics: Science & Society
- GACE Physics: Role in Daily Life & the Environment
- GACE Physics: Scientific Inquiry
- GACE Physics: Lab Safety Procedures & Hazards
- GACE Physics: Scientific Measurement & Data
- GACE Physics: Math for Physics
- GACE Physics: Properties of Matter
- GACE Physics: Kinematics
- GACE Physics: Force & the Laws of Motion
- GACE Physics: Oscillations
- GACE Physics: Laws of Gravitation
- GACE Physics: Principles of Fluids
- GACE Physics: Linear Momentum
- GACE Physics: Work & Energy
- GACE Physics: Equilibrium & Elasticity
- GACE Physics: Rotational Motion
- GACE Physics: Thermodynamics
- GACE Physics: Atoms
- GACE Physics: Modern & Nuclear Physics
- GACE Physics: Relativity
- GACE Physics: Electrostatics
- GACE Physics: Magnetism
- GACE Physics: Electric Circuits
- GACE Physics: Wave Optics
- GACE Physics: Energy Production
- GACE Physics Flashcards