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13 Cards in this Set
- Front
- Back
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What does Laser stand for? |
Laser stands Light Amplifiaction by Stimulated Emission of Radiation! Science! |
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What is a laser? |
A typical laser emits light in a narrow beam of a single colour. It also can help us measure. as it travelsin straight lines. Add some measurements to the projection, and whala! a extremely accurate measurement! |
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How far can light waves travel? |
Light waves can travel long distances, and as light reaches us from the sun, round abouts 150 million KM. |
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What is light? |
Light is a form of energy, and it's transmitted through waves. |
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What gives of light? |
Any luminous object, like the sun, lamps and even a very dim torch produces light. (do not accept only the sun, you need three answers) |
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What does transparent mean? |
It let's light through an object. |
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What material is opaque? Water, Copper, Glass or Wood? |
Copper and Wood |
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How does light travel? |
Light travels in a straight line. |
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What does density mean? |
It means he mass devided by volume. We use cm3 and m3 to measure it. |
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Does light bend? |
In most cases, no, it doesn't, but in water, the angle is messed up, and the light bends, making the object in the water seem out of place, or bent out of place. |
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What are optical fibres used for? |
These fibres are used for transmitting light around a corner. They are made from very thin flexible glass. |
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What do we represent waves as in a diagram? |
We represent it as straight lines stacked up near each other. |
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(Irelivent Question) Is Link awesome? |
Yes. Yes he is. |
