电流、电压及其测量
Current, voltage, and what they measure
理解电流是电荷流动的速率（用电流表测量，单位是安培（A）），以及电势差（电压）是单位电荷所转移的能量（用电压表测量，单位是伏特（V））。
Understand that electric current is the rate of flow of charge (measured in amperes using an ammeter), and that potential difference (voltage) is the energy transferred per unit charge (measured in volts using a voltmeter)
学习证据 / Evidence
- 能说出电流的单位是安培（A），表示电荷在电路中流动的速率。
- 能说出电势差（电压）的单位是伏特（V），表示单位电荷所转移的能量。
- 在搭建或分析电路时，能正确地将电流表串联、电压表并联。
- States that current is measured in amperes (A) and is the rate at which charge flows around a circuit
- States that potential difference (voltage) is measured in volts (V) and represents energy transferred per unit charge
- Correctly connects an ammeter in series and a voltmeter in parallel when building or interpreting a circuit
评估问题 / Assessment
如果{{name}}用电流表和电压表搭建一个电路，能否解释这两个仪表分别测量什么，并描述电流和电压之间的区别？
If {{name}} sets up a circuit with an ammeter and a voltmeter, can they explain what each one is measuring and describe the difference between current and voltage?