Draw conclusions: How are potential energy, kinetic energy, and total energy related?
Gizmo Summary Questions1. What two things did you learn about how energy is transferred from completing this Gizmo lab? (Please use complete sentences.)
2. What happens to the to the levels of kinetic energy versus potential energy as the roller coaster moves through the track?
3. Where is kinetic energy at the highest? Lowest?
4. Where is potential energy at the highest? Lowest?
(Activity B continued on next page)Activity B (continued from previous page)6.Calculate: Gravitational potential energy (U) depends on three things: the object’s mass (m), its height (h), and gravitational acceleration (g), which is 9.81 m/s2on Earth’s surface:U= mghEnergy is measured in joules (J). One joule is equal to one 1 kg•m2/s2. When calculating the energy of an object, it is helpful to convert the mass and height to kilograms and meters. (Recall there are 1,000 grams in a kilogram and 100 centimeters in a meter.)A.What is the mass of the 50-gram car, in kilograms?