Energy Basics - Revision history

Cmditradmin: /* A watt is a unit of power. */

2016-11-08T21:11:38Z

A watt is a unit of power.

← Older revision		Revision as of 14:11, 8 November 2016
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	* 1 horsepower (hp) is 745.7 watts.		* 1 horsepower (hp) is 745.7 watts.
	[[file:Energypower.png\|Power consumption of devices compared]]		[[file:Energypower.png\|Power consumption of devices compared]]
			==== Energy Consumption by Source ====
			[[file:Energy_consumption_by_source_2014.jpg\|http://www.eia.gov/energy_in_brief/article/major_energy_sources_and_users.cfm]]

Cmditradmin at 21:05, 8 November 2016

2016-11-08T21:05:10Z

← Older revision		Revision as of 14:05, 8 November 2016
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	* In 2010, the average US power use was 3.3 terawatts, or 3,300,000,000,000 watts.		* In 2010, the average US power use was 3.3 terawatts, or 3,300,000,000,000 watts.
	* 1 horsepower (hp) is 745.7 watts.		* 1 horsepower (hp) is 745.7 watts.
	[[file:~~Power~~.png\|Power consumption of devices compared]]		[[file:Energypower.png\|Power consumption of devices compared]]

Cmditradmin: /* A watt is a unit of power. */

2016-11-08T20:54:19Z

A watt is a unit of power.

← Older revision		Revision as of 13:54, 8 November 2016
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	* In 2010, the average US power use was 3.3 terawatts, or 3,300,000,000,000 watts.		* In 2010, the average US power use was 3.3 terawatts, or 3,300,000,000,000 watts.
	* 1 horsepower (hp) is 745.7 watts.		* 1 horsepower (hp) is 745.7 watts.
			[[file:Power.png\|Power consumption of devices compared]]

Cmditradmin: /* A joule is the SI unit of energy. */

2016-11-08T20:50:47Z

A joule is the SI unit of energy.

← Older revision		Revision as of 13:50, 8 November 2016
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	==== A joule is the SI unit of energy. ====		==== A joule is the SI unit of energy. ====

	* A joule is the energy transferred when a force of one newton moves an object one meter (1 newton meter)		* A joule is the energy transferred when a force of one newton moves an object one meter (1 newton meter)
	* 1 joule of energy is used in lifting a 1 kilogram brick (2.2 pounds) 10 centimeters (3.9 inches).		* 1 joule of energy is used in lifting a 1 kilogram brick (2.2 pounds) 10 centimeters (3.9 inches).
	* A kilowatt-hour is a unit of energy.		* A kilowatt-hour is a unit of energy.
	* Running a 1.2 kilowatt microwave for 1 hour uses 1.2 kW-h of energy. That’s 4.3 megajoules or 4,300,000 joules.		* Running a 1.2 kilowatt microwave for 1 hour uses 1.2 kW-h of energy. That’s 4.3 megajoules or 4,300,000 joules.
	* A calorie is the heat energy required to increase 1 gm of water 1 deg C. (4.1868 J)		* A calorie is the heat energy required to increase 1 gm of water 1 deg C. (4.1868 J)

	==== A watt is a unit of power. ====		==== A watt is a unit of power. ====

Cmditradmin: Created page with "Need to Know * What is the difference between energy and power? * Approximately how much energy is consumed by different activities? * How much energy does it take to run..."

2016-11-08T20:50:18Z

Created page with "Need to Know * What is the difference between energy and power? * Approximately how much energy is consumed by different activities? * How much energy does it take to run..."

New page

Need to Know

* What is the difference between energy and power?
* Approximately how much energy is consumed by different activities?
* How much energy does it take to run the world?
* Where do we get our energy?

Energy is the ability to do work.
==== A joule is the SI unit of energy. ====

* A joule is the energy transferred when a force of one newton moves an object one meter (1 newton meter)
* 1 joule of energy is used in lifting a 1 kilogram brick (2.2 pounds) 10 centimeters (3.9 inches).
* A kilowatt-hour is a unit of energy.
* Running a 1.2 kilowatt microwave for 1 hour uses 1.2 kW-h of energy. That’s 4.3 megajoules or 4,300,000 joules.
* A calorie is the heat energy required to increase 1 gm of water 1 deg C. (4.1868 J)

==== A watt is a unit of power. ====

* Power is how fast energy is used or produced.
* A watt (W) is a joule (J) of energy used or produced per second.
* In 2010, the average US power use was 3.3 terawatts, or 3,300,000,000,000 watts.
* 1 horsepower (hp) is 745.7 watts.