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The document contains a list of parts of the human eye to define including the cornea, pupil, retina, iris, lens, optic nerve, and vitreous. It also instructs the reader to label a diagram of the eye and describe what happens to light as it enters using the vocabulary words provided.4.2 optics
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Optics is the study of visible light and how it interacts with the eye to produce vision. The document discusses key optics concepts such as the law of reflection, which states that the angle of reflection equals the angle of incidence, and different types of reflection from smooth and rough surfaces. It also covers how the shape of mirrors determines the type of image formed, such as flat mirrors showing an exact image, convex mirrors producing a smaller image, and concave mirrors creating upside-down or right-side-up images depending on the distance from the focal point where light rays meet.Electromagnetic waves test
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The document defines electromagnetic waves and asks a series of questions about them including: what is the disappearance of an EM wave into a medium? How are materials classified based on how they interact with light? It also asks about the electromagnetic spectrum, visible light wavelengths, and production of light through various means like heat and bioluminescence.Study guide info
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An electromagnetic wave transfers energy through a field and forms when atomic particles become electrically charged. EM waves come in a spectrum and most that reach Earth come from the Sun. They travel at 186,000 miles per second in a vacuum, also known as the speed of light. Gamma rays are most harmful but can treat diseases while transparent materials allow light to pass through and opaque materials block it.Light sources and interactions 3.3 3.4[2]
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The document contains a 13 question quiz about wave properties including:
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- Examples of longitudinal waves
- The definition of a wave medium
- The relationship between amplitude, frequency, wavelength, and energy in longitudinal waves
- How to identify amplitude in longitudinal waves
- The relationship between frequency and wavelength
- Conditions for wave refraction
- A setup that could demonstrate diffraction
- The process when two waves come together and interact to form a smaller wave
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An electromagnetic wave transfers energy through a field and forms when atomic particles become electrically charged. EM waves come in a spectrum and most that reach Earth come from the Sun. They travel at 186,000 miles per second in a vacuum, also known as the speed of light. Gamma rays are most harmful but can treat diseases while transparent materials allow light to pass through and opaque materials block it.Electromagnetic%20 spectrum[1]
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Pitch is determined by frequency, with higher pitches corresponding to higher frequencies. Humans can hear sounds between 20-20,000 Hz. Natural frequency is the rate at which an object vibrates naturally, and resonance occurs when a sound wave matches this natural vibration. Timbre, or sound quality, is affected by the combination of frequencies present and how the sound begins and ends.2.1
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Sound is a mechanical wave that is produced by a vibrating object and travels through matter such as air. It is generated when air is pushed from the lungs through the vocal cords, causing them to vibrate and produce sound waves. These waves enter the ear and cause the eardrum and small bones of the middle ear to vibrate, transmitting the vibrations to the inner ear where hair cells detect the sound and send signals to the brain. Sound waves travel by compressing particles in the medium and require a medium like air to propagate through.1.3
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Waves behave predictably and interact with materials in several ways. Waves reflect when hitting a barrier by bouncing back, refract by bending when entering a new medium at an angle, diffract by spreading out through openings or around obstacles, and interfere by either constructively adding to make larger waves or destructively canceling each other out. The document discusses key wave behaviors like reflection, refraction, diffraction, and interference and provides examples of each.1.2
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