Questions and Answers
What is reflection?
What is refraction?
What happens to light in absorption?
When light is stopped and doesn't reflect.
What does it mean if an object is opaque?
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What is a prism?
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What is the visible spectrum?
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What is loudness?
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What is pitch?
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What happens during a sonic boom?
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What creates sound?
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Sound waves travel __________ through air than through water.
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What can light energy do?
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How does light behave?
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What is white light?
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What is the color of an object determined by?
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How is a rainbow formed?
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What happens as sound waves move away from their source?
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What is kinetic energy?
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What can happen to both light and sound waves?
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What defines amplitude in a sound wave?
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What is the speed of sound?
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A wavelength is the distance from the __________ in one wave to the next highest point.
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People can't hear sound at all wavelengths.
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Light waves travel more quickly than sound waves.
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Study Notes
Light Concepts
- Reflection: Light bounces off surfaces, exemplified by mirrors.
- Refraction: Light bends when passing through materials like water.
- Absorption: Light is captured and does not bounce back.
- Opaque Objects: Reflect or absorb all light; no light passes through.
- Translucent Objects: Allow partial passage of light, creating blurred images.
- Prism: A glass structure that refracts light to separate it into colors.
- Visible Spectrum: Comprises all colors visible to the human eye; represented by ROYGBIV (Red, Orange, Yellow, Green, Blue, Indigo, Violet).
- White Light: A combination of all colors of light reflected together.
- An object’s Color: Determined by the specific wavelength of light it reflects.
Sound Concepts
- Compression: Regions in a sound wave where air particles are pushed closely together.
- Echo: Occurs when sound waves reflect off surfaces and return.
- Loudness: Also referred to as volume; quantifies sound energy received by the ear.
- Pitch: Refers to the perceived frequency; higher frequency corresponds to higher pitch.
- Sonic Boom: A burst of sound created when an object exceeds the speed of sound.
- Sound Waves: Created by vibrations; characterized by high and low-pressure areas.
- Speed of Sound: Approximately 770 mph (343 m/s or 1125 ft/s); travels about one mile in five seconds.
Sound Properties
- Amplitude: Indicates the height of sound waves; corresponds to volume (loud or soft).
- Frequency: Number of sound waves per second; higher frequency results in higher pitches.
- The Outer Ear: Functions to funnel sound waves into the ear canal.
- Nerve Cells in the Inner Ear: Collect sound information and transmit it to the brain.
- Ear Canal: A passage that directs sound waves to the eardrum.
- Sound Wave Behavior: Waves weaken as they disperse from their source; travel slower in air compared to water.
Comparisons and Interactions
- Material Influence: Sound and light waves can be absorbed, reflected, or transmitted depending on the material properties.
- Virtual Wavelength: The distance between consecutive peaks in a wave; significant in understanding sound and light properties.
- Distance Effects: Sound waves fade in intensity as they move away from their source; light can travel vast distances with minimal loss.
General Concepts
- Vibrations: The foundation of sound production, representing a repeated back-and-forth motion.
- Kinetic Energy: The energy possessed by moving objects; relevant in understanding wave motion.
- Amplification: The process of increasing sound intensity, making it louder.
- Light Energy Functions: Essential for plant growth, energy for cars, coloration, and powering satellites.
- Rainbow Formation: Involves refraction, reflection, and dispersion of sunlight through raindrops.
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Description
Explore key terms related to sound and light through these flashcards. This quiz covers concepts such as reflection, refraction, absorption, opaque, and translucent. Perfect for reinforcing your understanding of light behavior in different media.