1) how is lightning caused? a) when clouds rub together creating friction b) when rain is to hot and hits a energy cloud 2) what happens when lightning hits sand? a) it creates glass b) the sand becomes hard like rocks 3) what comes first lightning or thunder? a) thunder b) lightning 4) why does thunder have a delay after lightning stricks? a) because the lightning breaks sound barrier and the sound cant keep up b) because thunder comes first c) because thunder is the clouds running into each other after strike 5) in a electrical current what does AC stand for? a) After current b) alternating current 6) what does DC stand for? a) Direct current b) dangerous current c) dying current d) delayed current 7) What does the A symbol stand for in a electrical current? a) Animal b) amps c) amphres d) active 8) What about V what does it stand for? a) volume b) voltage c) vamps d) valkyrie 9) what is the role of Voltage in a electrical current? a) electrical pressure pushing charged electrons through the circuit b) voltage stops the current from moving c) voltage is what lets electron into devices (E.G a lightbulb) 10) what are the different sources of electricity needed for a current a) negative and positve b) in and out c) go and stop d) charged and dead

electricity

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？