Turn off your ___ computer and ___ light bulbs. Let's go out for a walk.( )A. electrical; electronicB. electronic; electricC. electric; electricalD. electric; electronic 相关知识点: 试题来源: 解析 electrical电的,与电有关的,指与电有关的事物,被修饰的事物本身并不能带电,electronic电子...
爱给网提供海量的(CC协议)高清实拍资源素材免费下载, 本次作品为mp4 格式的灯泡电流(light-bulbs-electricity-current), 本站编号43376879, 该(CC协议)高清实拍素材大小为4m, 时长为12秒, 分辨率为1920*1080, 该素材已被下载:9次,许可范围为可商用,协议名称为pixabay协议, 更多精彩(CC协议)高清实拍素材,尽在爱...
Novices tend to have inadequate understandings of what happens at the level of atoms and electrons, leading to difficulty predicting the outcomes of electrical circuits at the level of wires, resistors, and light bulbs. In this paper, we argue that integrating micro and macro representations of ...
In order to save electricity, we should use energy-efficient light bulbs. Which word means “energy-efficient”? A. powerful B. economical C. bright D. colorful 相关知识点: 试题来源: 解析 B。解析:本题考查词汇理解。powerful 强大的;economical 节能的;bright 明亮的;colorful 多彩的。根据句意...
A single flash of lightning 1.6 kilometers long has enough electricity to light one million light bulbs. The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752. In the same year he also built the first lightning ...
Potatoes are vegetables and food, but they actually generate electricity. They light up light bulbs. It's crazy! 把导线两端分别连接到铜棒和锌棒上,再将铜棒和锌棒分别插在每个土豆上,并按顺序错开。最后,把灯泡接在导线头上,你会发现,...
The power of producing electricity may serve these fish both for defence and attack.The ideal title for this passage is ___. A.The EelB.TorpedoC.Electric FishD.Electric Power 3 The idea of a fish being able to generate electricity strong enough to light lamp bulbs--or even to run a ...
(电) is off.In 1800, Alessandro Volta succeeded in building a voltaic pile Batteries(伏打电堆) to produce electricity.His voltaic pile is the first battery in the world.Joseph Swann and Thomas Edison both produced a light bulb Light bulbs within months and they worked together to make their...
If electricity and light truly transformed people’s lives, it might make sense to offer large subsidies for solar systems and grid connections or even to give them away. It might bring benefits that people could not have imagined. Or they might know about the benefits but be unable to affor...
We use light bulbs to illuminate our homes, streets, and buildings. Without electricity, we would haveto rely on candles or oil lamps for light, which would be much less efficient and more dangerous. Another important use of electricity is for heating and cooling. We use electricity to power...