Distinguish between temperature and heat. Then describe the important characteristics of the three main temperature scales
What will be an ideal response?
Temperature is a measurement of the average kinetic energy of molecules in matter. Heat is the flow of kinetic energy between molecules. The three primary temperature scales are Fahrenheit, Celsius, and Kelvin. Fahrenheit places the melting point at 32° and the boiling point at 212°. Celsius is divided into 100 degrees using a decimal system, with a melting point at 0° and a boiling point at 100°. The Kelvin scale starts with an absolute zero, with temperature readings proportional to the actual kinetic energy. Melting point for ice is 273° and boiling point for water is 373°.
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A) the United States B) France C) Japan D) Germany
As of 2014, the proportion of urban population is
A) highest in Africa and Asia. B) fairly stable in North America, Oceania and Europe. C) increasing at the same rates in nearly all regions. D) balanced by the rate of people emigrating to rural areas.
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A) plants release CO2 B) warm air cannot escape, as in a greenhouse C) plants absorb CO2 D) molecules in the atmosphere trap heat radiated from the Earth's surface E) fossil fuels release heat
Tornadoes of F1 to F2 in strength account for ________
A) most of the deaths by tornadoes B) most of the tornadoes observed C) most of the weird phenomena ascribed to tornadoes D) most of the property destruction caused by tornadoes