1. How can we use electricity (safe)? 2. Wind power is a way of (produce) electricity. 3. My father bought me two (packet) of sweets yesterday. 4. Can you get (they) something to drink? 5. It's (fool) of you to buy such a dress. It looks so ugly. 相关知识点: 试题...
How Do Wind Turbines Work? Rebecca J. Barthelmie and Sara C. Pryor Every 24 hours, wind generates enough kinetic energy to produce roughly 35 times more electricity than humanity uses each day. And unlike coal or oil, this resource is totally re...
Fridges, air conditioners, washing machines and ricecookers can't work without electricity. Electricity is so useful, butwhere does it come from? Most ofthe electricity we use comes frompower stations. Power stations all over the country produce electrici-ty every day. Everyone should try to ...
"As you exercise,your body heats up,and that heat will radiate out to the cool air around you.The device catches that flow of energy instead of letting it go to waste.当你运动时,你的身体会变热,热量会辐射到你周围的冷空气...
How can the device produce more electricity? A. By putting more insulation around the top plate. B. By using it in extremely cold and clear nights. C. By attaching the bottom plate to a warm plate. D. By covering the top plate with a transparent lid. ...
How to Generate Electricity with Geothermal Energy Geothermal energy is energy from within the earth. The earth from inside is too hot. This heat from within the earth can be used to turn turbines and produce electricity. This technology is still a subject matter of further research and engineer...
By making the current as small as possible, we can keep the energy to a minimum—and we do that by making the voltage as big as possible. Power stations produce electricity at something like 14,000 volts, but they use transformers (voltage increasing or decreasing devices) to "step up" ...
结果1 题目 13. How can a wearer make the device produce electricity? A. By shaking it fast.B-By leaving it in the cool ait. C. By giving out heat. D. By connecting with watch batteries 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
Some scientists are working hard at how tide(潮汐)can be___ to produce electricity. A. harness B. harnessful C. harnessable D. harnessed 相关知识点: 试题来源: 解析 [解析]选D。can be harnessed构成被动语态,故选D。反馈 收藏
Air-source heat pumps help produce heat rather than electricity. They work by absorbing heat from the atmosphere to heat radiators and underfloor heating, produce hot water, and heat warm air convectors. How much heat they can produce depends on how long your loop system is for drawing in ...