Page 2 - Lesson Note-Physical quantity

5. Electric Circuit with Ammeter – Measuring current in a closed circuit.

Fundamental Physical Quantities:

Quantity Unit (SI) Symbol Measuring Instrument Diagram Description

Length Meter (m) m Ruler, Tape Ruler measuring pencil

Beam balance with
Mass Kilogram (kg) kg Balance
weights

Time Second (s) s Stopwatch, Clock Clock showing seconds

Kelvin (K) / Thermometer in hot
Temperature K / °C Thermometer
Celsius (°C) water

Electric Circuit diagram with
Current Ampere (A) A Ammeter ammeter

Luminous Candela (cd) cd Light meter Light meter measuring
Intensity bulb

Amount of Conceptual illustration of
Substance Mole (mol) mol N/A molecules