Q: Its harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor.  Fred was moving a desk across the room. He then pushed a chair and it was much easier. This is because the lighter chair had less or more friction with the floor?
A: less


Q: A wave caused by a disturbance with more energy has greater amplitude.  A dolphin is swimming through waves in the ocean. The dolphin jumps out of the water then falls back in, creating a wave through the dolphin's disturbing the water. Nearby, turtle flaps it's fin and makes another wave. The waves the dolphin made will have an amplitude that is lesser or greater?
A: greater


Q: When a person smokes there are chemicals released by the tobacco that enter the lungs. Because the lungs have to work harder to remove the chemicals, the body has to work harder to get the air needed to survive.  If the amount of chemicals inside of Jim's lungs decreases, what will happen to the amount of air his lungs can process increase or decrease?
A: increase


Q: Less photosynthesis means that plants and phytoplankton produce less food.  Jean has two plants, one with leaves, and one that has had the leaves stripped from it. The plant stripped of its leaves will produce food in amounts that are smaller or larger?
A: smaller