Please answer the following multiple-choice questions. Do not leave any question unanswered as it will be marked wrong.

1.The fact that a thermometer "takes its own temperature" illustratesA. The difference between heat and thermal energy B. The fact that molecules are constantly moving C. Thermal equilibrium

D. Energy Conservation

2. When you touch a cold piece of ice with your finger, energy flows A. From the ice to your finger B. from your finger to the ice C. Both ways

D. None of the above

3. The moderate temperatures of islands throughout the world has much to do with water'sA. Poor conductivity B. High specific heat capacity C. Absorption of solar energy

D. High evaporation rate

4. Ice has a lower density than water because ice A. Sinks B. Molecules are more compact in the solid state C. Molecules vibrate at lower rates than water molecules D. Is made of open-structed, hexagonal crystals

5. Before ice can form on a lake, all the water in the lake must be cooled to A. 4 degrees Celsius B. 0 degrees Celsius C. A value slightly below 0 degrees Celsius

D. Neither of these

6. When 100 J of heat is added to a system that performs 60 J of work, the thermal energy change of the system is

A. 40 J B. 0 J C. 100 J D. 60 J

7. When a volume of air expands against the environment and no heat enters or leaves, the air temperature will

A. Increase B. Decrease C. Remain unchanged D. None of the above

8. Suppose you put a closed, sealed can of air on a hot stove burner. The contained air will undergo an increase in

A. Pressure B. Temperature C. Thermal Energy D. All of these

9. If you run a refrigerator in a closed room with the refrigerator door open, the room temperature will

A. Increase B. Decrease C. Remain unchanged D. None of the above

10. As a system becomes more disordered, entropy A. Increases B. Decrease C. Remains the same

D. All of the above