Energy

1. Energy Quiz Review 1/24/11

2. Types of Energy

3. Kinetic or Potential Running water Food Blood flowing A fire Boy running Nuclear bomb Roller coaster at the top of the hill

4. Calculate Kinetic and Potential Energy KE = ½ m v 2 PE = mgh Find KE m = 20 kg , v = 23 m/s Fine PE m = 20 kg , g = 9.8 m/s/s and h = 27 m

5. Convert Celsius to Fahrenheit Fahrenheit = (degrees Celsius ) x 9 / 5 + 32 oF = ? 0C = 75 oF = ? oC = 25

6. Calculate the Heat Absorbed by Silver Q = m x c x DT Unit of heat is Joules Mass(kg) Find Q: m = 25 kg c = 230 change in temp is 10 – 45 oC