Today we practiced KE and PE calculations with this worksheet.
The answers to Gravitational Potential Energy Calculations (You only need to do #1, 31b, 6 and 7):
#1) PE = 22 050 J #2a) 235.2 Kg #2b) 39.2 J #2c)68.6 J #2d) 0J #3a)1499.4 J (if you consider the first floor to be 2.5 m up)
#3b)8996.4 J #3c)14994 J #3d) 16 493.4 J #4) 980000000 J lost
#6) 0.204 Kg #7) 774.8 m #8) 1.6 m/s2
Kinetic Energy Calculations: #1) KE = 945 J #2) 2070.7 J #6) 4 m/s #10) 252.3 m/s
Next block we watched the Bill Nye video to practice energy:
