Heat and Temperature Practice Test (Sep 29)

Match the following scientists with their corresponding contributions.

• The Celsius Scale

• Anders

• Lord Kelvin; The Kelvin Scale

• William Thomson

• Modern idea of heat

• Benjamin Thomson (Count Rumford of Bavaria)

• Joules; Measured heat in terms of work

• James Prescott

Match the following terms with their corresponding definitions.

• Energy reflected by the surface

• Temperature

• Boiling point of water

• Absolute 0 (0K)

• Measure of the average kinetic energy

• 100°C

• Coldest possible temperature

• Albedo

Match the following terms with their corresponding definitions.

• Collision of high KE molecules

• Radiation

• EM wave transfer

• Conduction

• Thermal energy

• Convection

• Hotter and less dense materials rise

• Heat

I. At midday, the beach sand is hotter than the seawater.

II. At night, the temperatures of the beach sand and seawater equalize.

• Only statement I is true.

• Only statement II is true.

• Both statements I and II are true.

• Both statements I and II are false.

I. Objects with the same temperatures have the same total KE.

II. An object with a higher average kinetic energy (KE) would have a higher temperature than an object with a lower average KE.

• Only statement I is true.

• Only statement II is true.

• Both statements I and II are true.

• Both statements I and II are false.

Based on the figure, determine the accuracy of the following statements:
I. Beaker B has a higher average KE than Beaker D.

II. Beaker B and Beaker C have the same total KE.

• Only statement I is true.

• Only statement II is true.

• Both statements I and II are true.

• Both statements I and II are false.

I. There is no molecular motion at 0°C.

II. Each Kelvin has the same size as a degree Celsius.

• Only statement I is true.

• Only statement II is true.

• Both statements I and II are true.

• Both statements I and II are false.

I. Heat is transferred from an object with a higher temperature to an object with a lower temperature.

II. Heat transfer stops when equilibrium is reached.

• Only statement I is true.

• Only statement II is true.

• Both statements I and II are true.

• Both statements I and II are false.

Let x be the normal body temperature (humans) in K and y be the normal body temperature in Fahrenheit. What is x+y? Round your answer to the nearest whole number.

Mathematical Equivalence

ON

If 50 g of water is heated from 20°C to 80°C, the amount of heat energy absorbed is x (in calories) or y (in joules). What is x+y? Round your answer to the nearest whole number. (Hint: 1 calorie = 4.16 J)

Mathematical Equivalence

ON