问题
填空题
电功率是表示________的物理量,电灯的功率是60瓦,表示的意思是________连续通电1小时,电流做功________焦。
答案
电流做功快慢;每秒钟消耗电能60焦;2.16×105焦
电功率是表示________的物理量,电灯的功率是60瓦,表示的意思是________连续通电1小时,电流做功________焦。
电流做功快慢;每秒钟消耗电能60焦;2.16×105焦
选词填空。 | |
on Saturday. Kate likes ____________ pictures. Their father and mother ____________ in China. Their father drives a car to work. Their mother goes to work by bike. |