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| Troughs, crests, and wave energy are all related to ___________________. |
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| Transverse waves are waves in which the particles of the medium move at _______ ______ to the direction of the wave. |
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| The type of medium determines the _________ of a wave. |
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| The lowest point on a wave is called the ________. |
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| What is it called when air molecules are crowded together? |
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| When a wave is traveling at a constant speed and a constant direction, what do we know about the medium? |
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Definition
| The medium has remained the same. |
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| Amplitude depends on the __________ of a wave. |
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| What is it called when a wave strikes a surface and bounces back at the same angle at which it struck? |
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| What does the density of a medium affect? |
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| Give an example of refraction. |
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Definition
| Pencil is placed in a glass of water and it looks like it is bent. |
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| When waves move at different speeds in different mediums it is called? |
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| What phase of matter does sound travel the fastest through? |
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| Give an example of longitudinal wave. |
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Definition
| The number of waves per unit of time. |
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| When you have to locate object in water or determine an underwater distance, what would you use? |
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| Amplitude determines the ___________ of sound. |
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| Sound waves can be transmitted through all phases of ___________ . |
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| What type of wave travels as a series of compressions and rarefactions? |
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| What waves differ from other waves because they can travel in a vacuum? |
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Definition
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Term
| Radio waves have the __________ frequency and the __________ wavelength. |
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Definition
| lowest frequency, longest wavelength |
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| What electromagnetic wave has the highest frequency? |
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Definition
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Term
| Why are sound waves not found on the electromagnetic spectrum? |
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Definition
| Sound waves are mechanical and cannot travel in a vacuum. |
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Term
| On the electromagnetic spectrum, what colors are found under visible light? (In order) |
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Definition
| Red, Orange, Yellow, Green, Blue, Indigo and Violet (ROY G. BIV) |
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| What has a shorter wavelength visible light or radio waves? |
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Definition
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| Is the speed of light the fastest in a solid, liquid, gas or vacuum? |
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Definition
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Term
| What is an example of a transverse wave? |
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Definition
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| A microwave is considered what type of wave? |
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Definition
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Term
| What is an illuminated object? |
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Definition
ILLUMINATED OBJECT is an object that can be seen because it is lit up
Example: moon, book |
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Term
| When there is very little scattering of light what type of reflection is it? |
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Definition
| regular reflection; example: mirror, glass |
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| When light is scattered in many different directions from an irregular surface what type of reflection is it? |
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Definition
| diffuse reflection; example: wall |
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| What does it mean when a substance is transparent? |
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Definition
| It transmits light easily |
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| What does it mean when a substance is translucent? What is the image like? |
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Definition
| When light is transmitted and scatters the light, the image is unclear and lacks detail. |
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Term
| An apple is red because red is _____________ and the other colors are ____________________. |
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Definition
| red is REFLECTED; other colors are ABSORBED |
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Term
| What color reflects all colors and does not absorb any color of the spectrum? |
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Definition
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| What color absorbs all the colors of the spectrum? |
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Definition
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Term
| When light passes through a prism VIOLET is the most visible. Why is that true? |
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Definition
| Violet has the shortest wavelength and is refracted the most. |
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Term
| When light passes through a prism RED is the least visible. Why is that true? |
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Definition
| Red has the longest wavelength and is refracted the least. |
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Term
| What is the reason there are different colors on the electromagnetic spectrum? |
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Definition
| Each color has a different wavelength |
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Term
| What happens to reflected light when it hits a rough surface? |
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Definition
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Term
| How do you measure a wavelength in a longitudinal wave? |
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Definition
| Measure rarefaction to rarefaction OR measure compression to compression |
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Term
| When parallel light rays hit a concave mirror, the light rays reflected back to a __________________. |
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Definition
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Term
| What happens to the intensity of a wave as it travels away from its source? |
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| A movement that follows the same path repeatedly is called a ______________. |
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