7. Energy, Rate and Equilibrium

Discuss the changes in the potential and kinetic energy of a roller-coaster ride as the roller-coaster car climbs to the top and goes down the other side.

Indicate whether each of the following statements describes potential or kinetic energy: c. the energy in a lump of coal

Indicate whether each of the following statements describes potential or kinetic energy: b. kicking a ball

Using the energy values for foods (see TABLE 3.7), determine each of the following (round off the answer for each food type to the tens place): d. the grams of fat in one avocado that has 405 kcal, 13 g of carbohydrate, and 5 g of protein