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| Metals are good ___________________. |
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Definition
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| Wood is a good ____________________. |
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| There are three forms of Heat Transfer. Name them and give examples. |
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Definition
| Convection (wind over ocean), Conduction (pan on electric stove), Radiation (Sun to Earth) |
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| Iron is a good absorber and a _____________ emitter. |
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Definition
| good. Good absorbers are good emitters. Poor absorbers are poor emitters. |
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Term
| An insulator is an object which delays the transfer of _______________. |
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| If you hold one end of an iron rod in a flame and touch the far end with your hand. You will eventually feel heat. How was the heat transferred? |
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| Materials that _________ heat well through direct contact are called good conductors. |
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Term
| When you touch a piece of wood, and a piece of metal, which one feels colder? Explain. |
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Definition
| The metal, because it is the better conductor. Heat is moving from your hand into the metal making the metal “feel” cooler |
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Term
| __________is defined as the absence of “ heat.” |
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Definition
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Term
| When heat is transferred by ______________ in a fluid it is called convection. |
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Term
| Energy that is transmitted in the form of electromagnetic waves is called _______________________________. |
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Definition
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Term
| Any energy that is transmitted by radiation is a form of ______________________ energy. |
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Term
| All objects continually _______ radiant energy in a mixture of _________. |
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Definition
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Term
| Objects at low temperatures emit ____________ wavelengths of radiant energy. |
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Term
| Objects at __________ temperatures emit radiant energy with short wave lengths. |
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Definition
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Term
| A good absorber of radiant energy reflects __________ radiant energy. |
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Definition
| little, think of pupils of the eye. |
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Term
| Good absorbers of radiant energy are also good __________. |
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Definition
| emitters. A dark object that absorbs a lot must emit a lot as well. Think of the retina of the eye….it emits the information into the Optic Nerve |
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Term
| Give me an equation for: Newton’s Law of Cooling. |
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Definition
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Term
| To understand the greenhouse effect you need to know two things. Name them. |
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Definition
1.) All things radiate with a wavelength dependent on the temperature of the object.
2.) Transparency of an object depends on the radiation they are receiving. |
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Term
| Is earth’s atmosphere transparent to short wavelength radiated energy? (solar radiation) |
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Definition
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| Energy that Earth radiates is called __________ __________________. |
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Definition
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Term
| Earth’s atmosphere (due to CO2 and water vapor) a good _____________ and re-emitter of the long wavelength radiation (terrestrial radiation) |
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Definition
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