Electricity can flow through conductors. Which of the following is a good conductor? A. plastic B. wood C. copper D. rubber 相关知识点: 试题来源: 解析 C。解析:电可以通过导体流动。铜是良好的导体。选项 A 塑料、选项 B 木头和选项 D 橡胶都是绝缘体。
Electricity can flow through wires. What material is a good conductor of electricity? A. Wood B. Rubber C. Metal D. Paper 相关知识点: 试题来源: 解析 C。解析:金属是良好的导电材料。A 选项木头、B 选项橡胶、D 选项纸都是绝缘体,不导电。
Electricity can flow through wires. What is a device that uses electricity to do work called? A. Electron B. Proton C. Neutron D. Appliance 相关知识点: 试题来源: 解析 D。解析:A device that uses electricity to do work is called an appliance. Electron, proton and neutron are particles ...
Electricity can flow through conductors.Which of the following is a good conductor? A. Rubber. B. Wood. C. Metal. D. Glass. 相关知识点: 试题来源: 解析 C。本题考查导体的认识。橡胶、木头和玻璃都是绝缘体,金属是良好的导体。反馈 收藏 ...
题目Electricity can flow through wires. What is electricity? A. kind of gas. B. kind of liquid. C. form of energy. 相关知识点: 试题来源: 解析 A form of energy。电是一种能量形式。选项 A 和 B 错误,电不是气体也不是液体。反馈 收藏 ...
Electricity can flow through some materials. These materials are called conductors. Materials that electricity cannot flow through are called insulators. Which one is a conductor? A. Wood. B. Metal. C. Plastic. 相关知识点: 试题来源:
百度试题 结果1 题目A circuit may be defined as closed path ___ electricity can flow.相关知识点: 试题来源: 解析 through which 反馈 收藏
Electricity doesn't flow throughplastic, rubber or wood. So wires are usually covered with plastic or rubber to make them( 16) to use. When clectricity is moving, we call it an electrical current.Burning coal can make electricity. Electricity can( 17) be made from other energy,( 18) ...
1 3. Electricity ( flow) through thin wires. 4. The toy car gets power from (battery) . 5. Trees can produce ( chemistry ) to protect themselves from insects. 2【题目】3.Electricity(flow) through thin wire4. T he toy car gets power from _ (batterg)5. T rees can produce __ ...
Electricity doesn ’ t flow through plastic, rubber or wood. So wires are usually covered with plastic or rubber to make them(16) to use. When electricity is moving, we call it an electrical current. Burning coal can make electricity. Electricity can ( 17 ) be made from other energy,(...