1. The kinetic molecular theory explains that all matter is composed of particles constantly moving in random directions. What are these "particles"? Neutrons and protons Electrons Atoms Atoms and molecules (c) McGraw Hill Ryerson 2007

2. Which of the following would contain the greatest kinetic energy? A cup of hot chocolate A pot of hot soup An ocean A glacier (c) McGraw Hill Ryerson 2007

3. The photograph shows a pot of boiling water. When you grab the handle, you notice that the handle is very warm. What is the best description of how the handle became warm? Radiation of thermal energy through the glass of the pot. Conduction of thermal energy through the water into the glass pot. Convection of thermal energy through the glass of the pot. Conduction of heat through the glass of the pot. (c) McGraw Hill Ryerson 2007

4. As you move close to a campfire, you notice the air seems warmer the nearer you get to the fire. Without touching it, you can tell that the fire is quite hot compared to its surroundings. Which scientific concept allows you to feel that something is hot without touching it? Conduction Convection Radiation Reverse conduction (c) McGraw Hill Ryerson 2007

5. On a sunny summer day, why does a white car with a light-coloured interior stay cooler than a black car with a dark-coloured interior? Solar radiation reflects off the darker colours, away from the car, keeping the car cool Solar radiation reflects off the lighter colours, away from the car, keeping the car cool Solar radiation is absorbed into the lighter colours, keeping the car cool Solar radiation is absorbed into the darker colours, keeping the car cool

6. What type of radiation is associated with “heat?” Infrared Ultraviolet X-ray Gamma ray (c) McGraw Hill Ryerson 2007

7. Which term is “the measure of the average kinetic energy of all the particles in a sample of matter?” Heat Thermal energy Temperature Radiation (c) McGraw Hill Ryerson 2007