1 Physical Science Electricity

BUILDING BLOCKS OF SCIENCE ELECTRICITY

电力是科学的基石

WHAT IS ELECTRICITY? HEY! I'm Electricity! I'm a form of energy. Energy makes things move and do work! People use me to do all kinds of work...

什么是电？嘿!我电!我是能量的一种形式。 能量使物体运动并做功！人们用我做各种各样的工作……

I power lights... Electronics... And many kinds of machines. I even power you! But you have to be careful around me. If you get too close, you might get shocked!

我给灯供电……电子产品…… 还有各种各样的机器。 我甚至给你力量！但在我身边你得小心点。 如果你靠得太近，你可能会被吓到！

ELECTRICITY IN NATURE Electricity is a part of nature. Sometimes you can see me on a stormy night. Lightning is pure electricity! Actually, electricity is a part of all matter.

自然界中的电电是自然界的一部分。 有时你能在暴风雨的夜晚看到我。 闪电是纯电！实际上，电是所有物质的一部分。

I'm inside you right now. Every action and every thought are a result of electricity. Electrical signals inside your body carry information to and from your brain. These signals tell your brain what your eyes see, what your ears hear... ...and what your fingers feel. The signals even tell your heart when to beat!

我现在就在你体内。每个行动和每个想法都是电的结果。 你体内的电信号向大脑传递信息。 这些信号告诉你的大脑你的眼睛看到了什么，你的耳朵听到了什么…… ．．．还有你手指的感觉。 这些信号甚至会告诉你的心脏何时跳动！

ALL CHARGED UP All matter is made of tiny particles called atoms. Atoms are made of even tinier particles. Particles that carry a positive charge or neutral charge make up the center of an atom. Electrons are negatively charged particles that circle around the center of an atom.

所有的物质都是由叫做原子的微小粒子构成的。 原子是由更小的粒子组成的。 带正电荷或中性电荷的粒子构成原子的中心。 电子是带负电的粒子，绕着原子的中心旋转。