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Type: Multiple-Choice
Category: Heat Transfer
Level: Grade 6
Score: 1
Author: Qalam
Last Modified: 9 months ago

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Heat Transfer Question

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Read the passage about the three main temperature scales, then answer the questions.

Fahrenheit, Celsius, and Kelvin are the three main scales used to measure temperature. The Celsius scale is the most widely used of the temperature scales globally. The Celsius scale is based upon the freezing and boiling points of water. It assigns the freezing point of water a value of 0 degrees and boiling point of water a value of 100 degrees at standard atmospheric pressure. The symbol [math]deg C[/math] is used to abbreviate degree Celsius.

The Fahrenheit scale is commonly used in the United States. Like the Celsius scale, it uses the freezing and boiling points of water as the basis of the scale. However, the Fahrenheit scale sets the freezing point of water at 32 degrees and the boiling point of water at 212 degrees at standard atmospheric pressure. The symbol [math]deg F[/math] is used to abbreviate degree Fahrenheit.

Kelvin is a temperature scale used by scientists. The Kelvin scale is based upon the lowest possible temperature of matter. As particles cool, they lose kinetic energy. The Kelvin scale uses the point where particles have the least amount of energy as its lowest value. This is known as absolute zero. Absolute zero equals 0 kelvin, therefore, the Kelvin scale only uses positive values. In the Kelvin scale, water freezes at 273.15 kelvin and boils at 373.15 kelvin. The symbol [math]"K"[/math] is used for kelvin temperatures and the scale does not use the word degree or its symbol.

Grade 6 Heat Transfer

If you are at sea level, at about what temperature does water boil on the Kelvin scale?
  1. 0 K
  2. 100 K
  3. 273 K
  4. 373 K
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