QUIZ 1. Which scale system is not traditionally used in measurement in physics? a. Fahrenheit b. Centigrade c. Celsius d. Kelvin Answer: b. The centigrade scale is similar to the Celsius scale but is no longer in use in science. The Celsius scale is named after the scientist who invented the scale. 2. According to the Celsius scale, what is the freezing point of water at standard pressure? a. 273 degrees b. 32 degrees c. -32 degrees d. 0 degrees Answer: d. The arbitrary setting for the freezing point of water at standard pressure using the Celsius scale is zero degrees. This goes along with the boiling point of water in the Celsius scale, which is 100 degrees Celsius. 3. What is the approximate value of absolute zero in terms of degrees Celsius? a. 0 degrees b. -100 degrees c. -732 degrees d. -273 degrees Answer: d. Absolute zero in Kelvin is actually -273.15 degrees Celsius, which is the time at which all molecular motion in gases would theoretically cease. It does not indicate the lowest temperature possible.
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