Question

What is the unit for measuring the amplitude of sound?

• A. Decibel
• B. Coulomb
• C. Hertz
• D. Newton

Answer 1

Answer:

A. Decibel

Read Explanation:

7 Basic SI Units:

1. Length (l) – Meter (m)

2. Mass (M) - Kilogram (kg)

3. Time (T) - Second (s)

4. Electric current (I) - Ampere (A)

5. Thermodynamic temperature (Θ) - Kelvin (K)

6. Amount of substance (N) - Mole (mol)

7. Luminous intensity (J) – Candela (cd)

SI Derived Units:

1. Force, Weight - Newton (N)

2. Frequency – Hertz (Hz)

3. Electric charge - Coulomb (C)

4. Electric potential (Voltage) - Volt (V)

5. Inductance - Henry (H)

6. Capacitance – Farad (F)

7. Resistance, Impedance, Reactance - Ohm (Ω)

8. Electrical conductance - Siemens (S)

9. Magnetic flux – Weber (Wb)

10. Magnetic flux density - Tesla (T)  

11. Energy, Work, Heat – Joule (J)

12. Power, Radiant flux – Watt (W)

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