Energy Usage Monday-Wednesday

In order to determine my energy usage, I first recorded the hours of use for various electric objects throughout the day. I made lights a general because there are lights on where ever I go throughout the day with the exception of my cross country practice from 4 to 6 everyday when I'm outside. After recording the hours, I can use my previous predictions of power usage to determine the amount of joules used for each activity knowing the time. Power= Joules/ Second, thus I can multiply the amount of power by the amount of time (in seconds) to determine the amount of joules used for each activity.

The objects that I used that require energy were:

computer: 70 Watts

lights: 60 Watts x average 5 bulbs per room= 300 Watts

phone: 4-6 Watts= avg of 5 Watts

hair straightener: 206 Watts

Monday

computer-3 hrs (10800 sec) x 70 watts = 756000 Joules

lights- 7:30 wakeup- 11:30 sleep minus 2 hrs practice time- 14 hrs (50400 sec) x 300 Watts =15120000 joules

phone charge-1 hr (3600 sec) x 5 watts= 18000 joules

subtotal: 15,894,000 Joules

Tuesday

hair straightener -20 mins (1200 sec) x 206 watts= 247200 Joules

phone charge- 1 hr (3600 sec) x 5 watts =18000 Joules

lights -14 hrs (50400 sec) x 300 watts= 15120000 Joules

computer-4 hours (14400 sec) x 70 watts= 100080000 Joules

subtotal: 16,393,200 Joules

Wednesday

phone charge -1 hr (3600 sec) x 5 watts= 18000 Joules

lights -14 hrs (50400 sec) x 300 watts= 15120000 Joules

computer-2 hours (7200 sec) x 70 watts= 504000 Joules

subtotal: 15,642,000 Joules

TOTAL AMOUNT OF ENERGY USED FOR THREE DAYS: 47,929,200 Joules ≅ 5 x 10^7 Joules

15,894,000

+16,393,200

+15,642,000

47,929,200 Joules