Get ready for the NCEA Level 1 Energy Test. Utilize flashcards and multiple choice questions with clear explanations and hints. Prepare for success!

Multiple Choice

Which unit is used to measure voltage?

Voltage is the electric potential difference that pushes charges to move in a circuit. The unit for this driving force is the volt, symbol V. This makes volts the correct unit to describe how strong the push is behind the current. The other units describe different quantities: amperes measure current (how much charge flows per second), ohms measure resistance (how much a material resists the flow), and watts measure power (how quickly energy is used or produced). So when you’re naming the unit for voltage, the volt is the one to use.

Voltage is the electric potential difference that pushes charges to move in a circuit. The unit for this driving force is the volt, symbol V. This makes volts the correct unit to describe how strong the push is behind the current. The other units describe different quantities: amperes measure current (how much charge flows per second), ohms measure resistance (how much a material resists the flow), and watts measure power (how quickly energy is used or produced). So when you’re naming the unit for voltage, the volt is the one to use.