1. A process is described mathematically: 4M4M M M 4M4M 1. 4M4M M M 4M4M 3. 4M4M M M 4M4M 2. Which picture matches the mathematical description best?

2. Based on the description above, what can you say about the masses of the objects? A situation is described below mathematically:

3. Which verbal description matches the bar chart shown above? 1.Alan is riding a bike and hits a haystack, bringing him and his bike to a stop. 2.Alan is riding his bike and hits a patch of ice where he slides until he regains control and continues riding at a slower speed. 3.Alan gets hit by a tree branch and falls on the ground watching his bike ride off in the distance. P ix + I x = P fx A process is described with the impulse- momentum bar chart shown below.

4. A small person is walking across a massive freely floating raft in the water. Which picture represents this process? 1 2 3 4

5. A pendulum swings down and hits a piece of clay at the bottom. Which verbal description best matches the pictorial description? 1 1According to the conservation of energy, the increased mass implies increased energy. y > y o. 2 2Since energy is conserved, mass is not important. y = y o. 3 3Momentum must be conserved when the pendulum hits the clay, giving it a smaller velocity--so y < y o. 4 4There is no accurate way to determine how y and y o compare. yoyo y