Energy Storage and Transfer Model Worksheet 4: Quantitative Energy Calculations & Energy Conservation Be careful with units and unit conversions! 1. How much kinetic energy does a 2000 kg SUV traveling 70 mph have? (1 mile = 1600 meters) 70 mi, 1600m - 1 1200 onD 1120com /h 1min 1170 0 0 TV - 60 min 605 3600 = 37 EA = /2 muzz (2000 kg ) ( 31. 1 /s ) * = 19 67 210 J 2. How much energy does a 180 Calorie, half-pint carton of chocolate milk store? (One food Calorie = 4186 Joules) 180 cal x 41863 53 4 8: 0J Ical 3. Consider your 3 kg physics binder resting on the table in the classroom. Determine the gravitational energy of the earth- book system if the zero reference level is chosen to be: g = mish a) the table b) the floor, 0.68 meters below the book C - ( 3. OKS ) (10 ) (0.68m) = 20.4J