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47 Cards in this Set
- Front
- Back
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What are UV waves? |
A type of electromagnetic radiation that allows your body to make vitamin D. Overexposure can cause skin cancer or sunburns. |
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What are gamma rays? |
A type of electromagnetic radiation that is used in radiation therapy to kill cancer cells. |
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Which is faster radio waves or gamma rays? |
They both go at the same speed. |
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What are infrared waves? |
A type of electromagnetic radiation that is used to detect heat. |
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What are radio waves? |
A type of electromagnetic wave that is used in radios and televisions. |
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What is electromagnetic radiation? |
The transition of energy in the form of waves or rays from the longest-radio waves to the shortest gamma waves. |
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What are microwaves? |
A type of radio waves that is used in satellites and microwaves. |
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Why does a wet spot appear dark? |
Because there is not as much light being reflected so the spot doesn't appear as bright. |
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What is the wave model of light? |
A model of light behaviour that represents light traveling as a wave. |
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Why does a wet spot appear dark? |
Because there is not as much light being reflected so the spot doesn't appear as bright. |
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What is the wave model of light? |
A model of light behaviour that represents light traveling as a wave. |
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What is the order of electromagnetic radiation? |
Radio waves, microwaves, infrared waves, x-rays, and gamma rays. |
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What is frequency? |
The number of repetitive motions or vibrations that occur in a given time. Measured in hertz (Hz). |
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What is reflection? |
A visible effect when light strikes an object and bounce off. |
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What is the order of the visible spectrum of color from the highest wavelength to the lowest? |
Red, orange, yellow, green, blue, indigo, violet. |
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What is the order of the visible spectrum of color from the highest wavelength to the lowest? |
Red, orange, yellow, green, blue, indigo, violet. |
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How is frequency related to waves? |
Frequency increases - wavelength decreases Frequency decreases - wavelength increases |
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What is amplitude? |
The height of a wave crest or depth of a wave through as measured from the rest position. |
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What is amplitude? |
The height of a wave crest or depth of a wave through as measured from the rest position. |
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Why does a red apple appear red? |
This is because the Apple is only reflecting red light so that the only colour that you can see. |
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What is amplitude? |
The height of a wave crest or depth of a wave through as measured from the rest position. |
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Why does a red apple appear red? |
This is because the Apple is only reflecting red light so that the only colour that you can see. |
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What happens when you add cyan and magenta together? |
White with a tinge of blue. |
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What is amplitude? |
The height of a wave crest or depth of a wave through as measured from the rest position. |
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Why does a red apple appear red? |
This is because the Apple is only reflecting red light so that the only colour that you can see. |
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What happens when you add cyan and magenta together? |
White with a tinge of blue. |
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What would happen if you held a green lens over a red apple? |
The apple would look darker because the lens only lets green light through and the apple absorbs it. |
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What is amplitude? |
The height of a wave crest or depth of a wave through as measured from the rest position. |
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Why does a red apple appear red? |
This is because the Apple is only reflecting red light so that the only colour that you can see. |
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What happens when you add cyan and magenta together? |
White with a tinge of blue. |
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What would happen if you held a green lens over a red apple? |
The apple would look darker because the lens only lets green light through and the apple absorbs it. |
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Why can you see all light colours when you shine white light through a prism? |
This is because all colours refract at different angles so that you can see all of them. |
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What happens when you add two primary colours? |
Red+green=yellow Blue+green=cyan Red+blue=magenta |
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What happens when you add all primary colours? |
You create white light. |
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What are the three colours of light? |
Red, blue, and green. |
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What does ROYGBIV stand for? |
Red, orange, yellow, green, blue, indigo, violet. |
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How do you cal calculate frequency? |
Frequency = cycles/seconds. |
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How do you cal calculate frequency? |
Frequency = cycles/seconds. |
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Does a water wave carry water along with it? |
No because it is only energy being transferred and not the water. (The water moves up and down) |
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What is a transverse wave? |
A wave which matter in the medium moves at right angles to the wave. |
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What is the universal wave equation? |
Wavelength x frequency = speed of the wave |
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What is reflection? |
The visible effect when light strikes an object and bounces off. |
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What is the trough? |
The lowest point in a wave. |
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What is a compression wave? |
A wave in which matter in the medium moves back and forth along the same direction the wave travels. |
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What is a wave crest? |
The highest point in a wave. |
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What is a wave crest? |
The highest point in a wave. |
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What is a wavelength? |
The distance from one point on a wave to the same point in be nearest wave. |
