Physical Quantities and Units
by Chi HongHui
1. Time
1.1. Base Unit
1.1.1. Second
1.1.2. s
1.2. Instrument
1.2.1. Digital Stopwatch
1.2.2. Pendulum Clock
2. Electric Current
2.1. Base Unit
2.1.1. Ampere
2.1.2. A
2.2. Instrument
2.2.1. Ammeter
2.2.2. Galvanometer
3. Luminous Intensity
3.1. Base Unit
3.1.1. Candela
3.1.2. Cd
3.2. Instrument
3.2.1. Luxmeter
3.2.2. Light Meter
3.2.3. Densito Meter
4. Length
4.1. Base Unit
4.1.1. Metre
4.1.2. m
4.2. Instrument
4.2.1. Metre Rule
4.2.2. Vernier Calipers
4.2.3. Micrometer Screw Gauge
5. Mass
5.1. Base Unit
5.1.1. Kilogram
5.1.2. Kg
5.2. Instrument
5.2.1. Electronic Balance
5.2.2. Beam Balance
6. Thermodynamic Temperature
6.1. Base Unit
6.1.1. Kelvin
6.1.2. K
6.2. Instrument
6.2.1. Meter
6.2.2. reservoir
7. Amount Of substance
7.1. Base Unit
7.1.1. Mole
7.1.2. mol
7.2. Instrument
7.2.1. Triple Beam Balance
7.2.2. Weighing Scale