Final answer:
Measurement is the process of determining the value of a physical quantity using a standardized unit. Two standards used in measurement are the Imperial System and the Metric System. Physical qualities that can be measured include length, mass, time, temperature, electric current, amount of substance, and luminous intensity. The primary measurement systems are the Imperial System and the Metric System.
Step-by-step explanation:
Measurement is the process of determining the value of a physical quantity using a standardized unit. It involves comparing the unknown quantity with a known quantity to find its magnitude.
Development of Measurement Standards:
Two standards used in measurement are the Imperial System and the Metric System. The Imperial System was developed in the 19th century primarily in the United States and uses units such as inches, pounds, and gallons. The Metric System, also known as the International System of Units (SI), was established in the 18th century and is used in most countries globally. The Metric System was developed to create a universal and decimal-based system of measurement.
Physical qualities that can be measured:
Various physical qualities can be measured, including:
Length - measured in meters (m)
Mass - measured in kilograms (kg)
Time - measured in seconds (s)
Temperature - measured in degrees Celsius (°C) or Kelvin (K)
Electric current - measured in Amperes (A)
Amount of substance - measured in moles (mol)
Luminous intensity - measured in candela (cd)
Measurement Systems:
There are different measurement systems used across the world, but the two primary systems are the Imperial System and the Metric System. The Imperial System is primarily used in the United States and includes units such as inches, feet, pounds, and gallons. The Metric System, or the International System of Units (SI), is widely used internationally and is based on decimals and multiples of ten.