10 Ubiquitous Energy无处不在的能量 What forms of energy exist in nature? 自然界中的能量有哪些存在形式? How are they transformed? 它们是怎样转化的? We will prepare wire, deflated ping pong balls, combs, scraps of paper, etc. to study我们准备铁丝、瘪了的乒乓球、梳子、碎纸屑等来研究 Energy in life生活中的能量 Noise is also a form of energy噪声也是一种能量 I also know...我还知道… Energy能量 Mechanical energy机械能 Magnetic energy磁能 Acoustic energy声能 Chemical energy化学能 Thermal energy热能 Other Energy其他能 Light energy光能 Electric energy电能 Energy is the source of all activities. 能量是一切活动的源泉。 Without energy, we cannot live, we cannot learn, we cannot work; 没有能量,我们无法生活,无法学习,无法工作; without energy, plants would not grow, rain would not fall, and the sun would not shine.没有能量,植物不会生长,雨水不会降落,太阳也不会发光能量的存在形式多种多样,并以不同的方式储存、转化。 Energy can be transformed into each other能量之间可以相互转化 A light bulb converts electrical energy into light energy灯泡将电能转化成光能 Cars ......汽车…… I also know that ......我还知道…… Let's do some hands-on energy conversion experiments我们动手做几个能量转化的小实验 A deflated ping pong ball...瘪了的乒乓球… This will generate electricity这样可以生电 I can also do a little experiment我还能做一个小实验 What is the relationship between the sound and image of a TV and solar energy?电视的声和像与太阳能之间有什么关系? Try to relate them using the idea of energy transformation.试用能量转化的观点将它们联系起来。 Observe the examples of energy transformation in life and try to describe the process and form of energy transformation.留心观察生活中能量转化的实例,试着描述能量转化的过程及形式。 |
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