Energy

More documents

Recommendations

Info

Power: rate at which energy is converted to work Power = energy time Units: Joules per second, J/s, or watts (W) Familiar units of power: kilo-watt, kW 1hp = 746 W <strong>Energy</strong> = power x time =kWh is what you get charged for…
Example…….. If you eat 600 Calories per day (1 large order of fries) above what your energy needs How long will it take to gain 20 lbs? Average 150 lbs person needs about 15 calories/pound under normal circumstances 150 lbs x 15 Cal/lbs = 2250 calories per day To gain 1 lbs…you need an extra 3500 Calories To gain 20 lbs: 20 lbs x 3500 Calories=70,000 Calories 70,000 Calories/ 600 Calories/day= 116.7 days or about 4 months How long would you have to walk to burn off those extra 20 lbs? Assume you burn about 80 Calories/mile To burn off 20 lbs…need to burn off 70,000 Calories 70,000 Calories/80 Cal/mi= 875 miles of walking will do it!!
Page 1: Physics 10062 Professor Ani Apraham
Page 4 and 5: The Energy Basics: Work, Energy, Po
Page 6 and 7: Energy is the ability/capacity to d
Page 8 and 9: Amount of Energy How much energy is
Page 10 and 11: What is a calorie? 1 cal= amount of
Page 12: So, how come we don’t use chocola
Page 15: We believe it is a principle of the
Page 18 and 19: Open System
Page 22 and 23: Energy Drinks….
Page 25 and 26: What is in 5-hour ENERGY ® ? 5-hou
Page 27 and 28: Weightlifter Applies a Force over a
Page 29 and 30: Work is defined as the product of t
Page 31 and 32: The consequence of doing work on an
Page 35 and 36: Energy from fossil fuels Nuclear po
Page 37 and 38: The United States and Its Energy Fu
Page 39: Energy: Technological societies and

Energy

Create successful ePaper yourself

Delete template?

Save as template?