1. How does height influence the roller coaster? How would altering the height impact the ride if it were taller or shorter?

2. In what ways does mass affect the roller coaster? How would adjusting the mass of your train with passengers impact the ride?

3. If we assumed mechanical energy was conserved. Why might it not be conserved, and where would the excess energy go? Explain.

4. If we doubled the height of the roller coaster, how much would the speed change? Demonstrate this by using your KE and PE formulas and performing the necessary calculations. Show your work.