Final answer:
An interval scale lacks an absolute zero point, while a ratio scale has an absolute zero point. 12 hours is equal to 43,200 seconds. Measurement is the process of determining the magnitude of a physical quantity. Traditional measuring units can vary, while scientific measuring units follow a standard system.
Step-by-step explanation:
The difference between an interval scale and a ratio scale lies in the presence of an absolute zero point. On an interval scale, the intervals between values are equal and meaningful, but there is no true zero point. Examples of interval scales include temperature measured in Celsius or Fahrenheit. On the other hand, a ratio scale does have an absolute zero point, which allows for ratios and proportions to be calculated. Examples of ratio scales include weight measured in kilograms and time measured in seconds.
There are 43,200 seconds in 12 hours. To find this, you can multiply the number of hours (12) by the number of seconds in an hour (3,600). So, 12 hours x 3,600 seconds = 43,200 seconds.
Measurement is the process of determining the magnitude or amount of a physical quantity. It involves comparing an unknown quantity with a known standard unit using a measuring instrument. The result of a measurement is expressed as a numerical value and a unit.
The difference between traditional measuring units and scientific measuring units lies in the level of precision and consistency. Traditional measuring units may vary depending on location or cultural practices and often lack standardization. Scientific measuring units, on the other hand, are based on the International System of Units (SI), which provides a universal and standardized set of measurements.
Here are the definitions of the terms:
- Meter: The meter is the SI unit of length. It is defined as the length of the path traveled by light in a vacuum during a specific time interval.
- Second: The second is the SI unit of time. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.
- Kilogram: The kilogram is the SI unit of mass. It is defined as the mass of the International Prototype of the Kilogram, a platinum-iridium cylinder kept at the International Bureau of Weights and Measures.
- Length: Length is a physical quantity that describes the size or distance of an object. It is typically measured using units such as meters, feet, inches, etc.
- Time: Time is a measure of the duration between events. It is usually expressed in units such as seconds, minutes, hours, etc.
- Mass: Mass is a measure of the amount of matter in an object. It is typically measured using units such as grams, kilograms, pounds, etc.
- Physical quantity: A physical quantity is a property that can be measured and expressed numerically. Examples include length, time, mass, temperature, etc.
- Derived physical quantity: A derived physical quantity is a quantity that is derived from one or more fundamental physical quantities. Examples include volume (derived from length), speed (derived from length and time), etc.
- Fundamental physical quantity: A fundamental physical quantity is a physical quantity that is not derived from any other quantity. Examples include length, mass, time, etc.
- Scalar physical quantity: A scalar physical quantity is a quantity that has magnitude but no direction. Examples include mass, temperature, speed, etc.
- Vector physical quantity: A vector physical quantity is a quantity that has both magnitude and direction. Examples include displacement, velocity, force, etc.