8. Why do you put a metal spoon in your hot drink to cool it?

A. The slow moving molecules of the spoon loose energy.
B. The slow moving molecules of the spoon spread in the hot drink.
C. The fast moving molecules of the hot drink gains more energy.
D. The fast moving molecules of the hot drink spreads throughout the cooler spoon.

9. What will eventually happen if you leave a cup of hot coffee for 30 minutes on a table top in your room?

A. The cup of coffee will become colder than the room.
B. The room will become hotter than the cup of coffee. .
C. The cup of coffee will eventually cool down to room temperature.
D. Heat from the room will transfer to the cup of coffee.

10. When does heat transfer occur? Heat transfer will only occur if the two objects ________.

A. have the same temperature.
B. have different temperature.
C. are always in contact with each other.
D. are in thermal equilibrium.

11. Which of the following best explains why we should keep the door of refrigerators closed?

A. The temperature inside the fridge would decrease causing high electric bill.
B. The temperature outside would decrease due to movement of cold air from the fridge to the surroundings.
C. The temperature inside would increase due to heat transfer from the surroundings and can cause high electric bill.
D. It would create imbalanced temperature between the temperatures of the surroundings and inside the fridge.

12. In a burning building, you notice that the smoke and flame rise. You remembered the discussion in science class that warm air rises. What could be your possible move to escape without suffocation?

A. Climb up the stairs and look for windows to break and escape.
B. Crawl to avoid inhaling smoke and look for exit in order to escape.
C. Take a deep breath and ignore the thick smoke and run.
D. Stand still to avoid losing balance and look for exit and run.