MEASUREMENT

Question 1

Definition of Measurement

Answer 1

Measurement is the process of quantifying observations using standard units

Question 2

Define Base units and give examples with their base units

Answer 2

are fundamental units used to measure physical quantities:

Length: Meter (m)
• Mass: Kilogram (kg)
• Time: Second (s)
• Electric Current: Ampere (A)
• Temperature: Kelvin (K)
• Amount of Substance: Mole (mol)
• Luminous Intensity: Candela (cd)

Question 3

Derived Units

Answer 3

are units obtained from combinations of base units:
• Area: Square meter (m²)
• Volume: Cubic meter (m³)
• Velocity: Meter per second (m/s)
• Acceleration: Meter per second squared (m/s²)
• Density: Kilogram per cubic meter (kg/m³)
• Force: Newton (N) (kg·m/s²)

Question 4

Common Measurement Tools and their uses

Answer 4

Ruler or Meter Stick: Used to measure length or distance.
• Balance or Scale: Used to measure mass.
• Stopwatch or Timer: Used to measure time.
• Thermometer: Used to measure temperature.
• Graduated Cylinder: Used to measure volume of liquids.