What are some interesting facts about saving electricity?
March 15th, 2010 | 
Author:
some questions i can ask on my quiz for saving electricity?
or anywhere i can find them?
please?
** energy conservation **
Very good question!
What is the context – grade level? Questions will be different, harder or more technical for higher grade levels.
In general:
True/False – TV’s and Computers use electricity even when they are off.
True, Nearly every TV today uses some electricity even when it is off. This prolongs the life of internal components (by reducing thermal shock at turn-on) and preserves the channel memory and user preferences.
T/F – Cell phone or iPod chargers use electricity even when not charging.
True. You must unplug unused chargers or they will continue to use electricity even when disconnected from the phone.
T/F – You use more electricity turning on and off a light than by leaving it on.
False. The energy used at start-up is negligible compared to leaving the bulb lit.
T/F – Most street and outdoor lighting is wasted energy.
True. Current fixtures waste more than half of the energy used by directing light at the sky, and areas not requiring it. By redesigning outdoor and street fixtures to "full-cutoff" styles, more useful light can be produced with less energy. Light pollution is a major energy waster, and cause environmental disruption to birds, animals and humans.
Trivia:
Daylight savings time was originally started in an effort to conserve electricity in factories, by adjusting operating hours to allow the factory to be lit by natural light instead of artificial lighting.
During the Energy Crisis of the ’70′s, enough residential consumers implemented conservation methods that it required electrical generation companies to change their billing structures for industrial/commercial customers to make up for the shortfall of revenue. Prior to this, residential electric rates subsidized industrial users to keep electricity affordable for them.
Good luck with your quiz!
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Posted in saving electricity
Very good question!
What is the context – grade level? Questions will be different, harder or more technical for higher grade levels.
In general:
True/False – TV’s and Computers use electricity even when they are off.
True, Nearly every TV today uses some electricity even when it is off. This prolongs the life of internal components (by reducing thermal shock at turn-on) and preserves the channel memory and user preferences.
T/F – Cell phone or iPod chargers use electricity even when not charging.
True. You must unplug unused chargers or they will continue to use electricity even when disconnected from the phone.
T/F – You use more electricity turning on and off a light than by leaving it on.
False. The energy used at start-up is negligible compared to leaving the bulb lit.
T/F – Most street and outdoor lighting is wasted energy.
True. Current fixtures waste more than half of the energy used by directing light at the sky, and areas not requiring it. By redesigning outdoor and street fixtures to "full-cutoff" styles, more useful light can be produced with less energy. Light pollution is a major energy waster, and cause environmental disruption to birds, animals and humans.
Trivia:
Daylight savings time was originally started in an effort to conserve electricity in factories, by adjusting operating hours to allow the factory to be lit by natural light instead of artificial lighting.
During the Energy Crisis of the ’70′s, enough residential consumers implemented conservation methods that it required electrical generation companies to change their billing structures for industrial/commercial customers to make up for the shortfall of revenue. Prior to this, residential electric rates subsidized industrial users to keep electricity affordable for them.
Good luck with your quiz!
References :
Trivia source: Former Mass. Electric engineer.
Outdoor Lighting: International Dark Sky Federation