True: The correct name for a single battery is a cell., Metal, water and graphite are conductors., A switch can turn components on or off., Plastic is an insulator., False: Materials that conduct electricity are called insulators., This is a symbol for a buzzer., If there is a break in the circuit the components will still work., You need to connect the two wires to the same terminal on the cell/battery.,

Y3 True or false?

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?