UNITS

2 marks · Normal

Explain why it is important to use the correct SI unit when measuring electric current, voltage, and power in physics experiments.

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Marking points

B1 · 1 mark · Explains SI units are a standard recognised system

B2 · 1 mark · States it allows accurate comparison, communication, calculation, or avoids confusion

Worked solution

SI units are used internationally, providing a standard system for measuring quantities. Using the correct SI unit allows scientists to accurately compare results and prevents confusion in calculations or communication.