Light as a Wave

Front

Energy Noun

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[en-er-jee]

Back

Energy Noun

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The ability to do work or cause change in matter, such as light affecting a material.

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Example: Electrical energy in a light bulb is converted into light and heat.

Front

Light Source Noun

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[lite sors]

Back

Light Source Noun

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An object that produces and gives off its own light, rather than reflecting light from another source.

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Example: A light source emits light that travels in straight lines, creating a shadow when blocked by an object.

Front

Emit Verb

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[ee-mit]

Back

Emit Verb

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To produce and send out energy, such as light or heat, from a specific source.

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Example: The Sun emits light waves that travel through space to reach Earth.

Front

Wave Noun

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[wayv]

Back

Wave Noun

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A repeating disturbance or pattern that transfers energy from one location to another without transferring matter.

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Example: The image shows a transverse wave with labeled parts, explaining how waves transfer energy.

Front

Wavelength Noun

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[wayv-length]

Back

Wavelength Noun

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The distance between two corresponding points of a wave, which determines the type of light.

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Example: The image shows the distance between two crests of a wave, labeled as 'wavelength', helping students understand this key concept in light waves.

Front

Absorb Verb

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[ab-zorb]

Back

Absorb Verb

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To take in or soak up energy, such as a material taking in light energy.

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Example: Light energy hits a surface and is absorbed, turning into heat energy.

Front

Reflect Verb

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[ri-flekt]

Back

Reflect Verb

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To bounce energy, such as light waves, off the surface of an object without being absorbed.

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Example: A light beam hits a mirror and bounces off, showing how light reflects.

Front

Transmit Verb

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[trans-mit]

Back

Transmit Verb

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To allow energy, such as light, to pass through a material or medium to the other side.

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Example: Blue glass allows blue light to pass through while blocking other colors.

Front

Electromagnetic Spectrum Noun

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[uh-lek-tro-mag-net-ik spek-trum]

Back

Electromagnetic Spectrum Noun

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The entire range of light that exists, from radio waves to gamma rays, including visible light.

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Example: The image shows the electromagnetic spectrum, highlighting different types of waves like radio and gamma rays, to explain light as a wave.

Front

Visible Light Noun

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[viz-uh-bull lite]

Back

Visible Light Noun

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The part of the electromagnetic spectrum that is detectable by the human eye and seen as colors.

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Example: A prism separates white light into a spectrum of colors, showing visible light as part of the electromagnetic spectrum.