🔍 Key Concepts

• Ohm’s Law (V = I × R) and what each letter represents • Difference between measuring voltage (potential difference), current, power, and resistance • Common electrical test instruments and what quantity each one measures

💭 Think About

• Which instrument would you use if you specifically want to know how hard it is for current to flow through a component? • Match each unit to the correct measuring device: ohm, volt, ampere, watt. Which unit is associated with resistance? • Think about the first letter or root of each instrument’s name. Does it sound like the unit for resistance, current, voltage, or power?

✅ Before You Answer

• Identify which physical quantity uses ohms (Ω) as its unit • Match that quantity to the correct meter name before looking at the distractors • Make sure you are not confusing the unit for current (amps), voltage (volts), or power (watts) with the unit for resistance