2nd 9 weeks blog #4

When you are riding on a roller coaster there are several instances were energy ( the capacity of a physical system to perform work) transformations occur. To begin with you start out on the ground, not moving with any potential energy ( the amount of energy potentially available due to gravity) and no kinetic energy ( the type of energy used when something is in motion). Then you are moving up slowly with low kinetic and growing potential. At the top potential energy is the greatest and kinetic is close to zero. On the way back down the potential energy continuously decreases while kinetic grows.
1. Potential energy is directly related to
     A. Speed
     B. Temperature
     C. Gravity/Height*
2 Potential energy transforms into kinetic energy when
     A. Mass Changes
     B. Temperature changes
     C. Speed/Motion changes*
3 A 5kg ball moving at 6m/s has a kenetic energy of _____
   A. 87
   B. 67
   C. 90j*