Heat Transfer Quiz Name _____________________ Date: _____________ Block: ____ Multiple Choice: Circle the letter which best answers the question. 1. A thermos bottle keeps warm liquids warm and cold liquids cold. A thermos bottle must be made from a good a. heat conduction material b. heat insulation material c. heat expanding material d. heat contracting material 2. Heat from the sun reaches Earth by a. convection b. radiation c. conduction d. none of the above 3. a. b. c. d. Materials through which heat can flow easily are called insulators radiators transformers conductors 4. When a metal spoon with a temperature of 20oC is placed into a cup of water with a temperature of 90oC the spoon will heat up. This is an example of: a. convection b. radiation c. conduction d. insulation 5. During a house fire, the smoke and flames rise up, but the air down near the floor is cooler and less smoky. This is an example of: a. conduction b. convection c. radiation d. insulation Short Answer: Explain how the 3 types of heat transfer (conduction, radiation, convection) occur in a lava lamp. Describe how the heat moves in each transfer (from what to what). 6. conduction 7. radiation 8. convection