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Thought-Process to Discover Knowledge

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Books and other education websites provide "matter-of-fact" knowledge. Instead, nubtrek provides a thought-process to discover knowledge.

In each of the topic, the outline of the thought-process, for that topic, is provided for learners and educators.

Read in the blogs more about the unique learning experience at nubtrek.continue

This topic introduced measuring length as "distance-span". It is an absolute standard and measured in reference to a standard `1` unit.



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Which of the following explains measurement of length?

  • the measurement of distance-span between two points, specified in reference to the standard meter
  • the measurement of distance-span between two points, specified in reference to the standard meter
  • the measurement of surface-span in a closed figure, specified in reference to the surface-span of a square of sides 1 meter

The answer is "the measurement of distance-span between two points, specified in reference to the standard meter"

Which of the following is a meaning for the word "span"?

  • s shaped pan
  • full extent or full spread of something
  • full extent or full spread of something

The answer is "full extent or full spread of something".

What is the term used to refer "full spread of something"?

  • Pronunciation : Say the answer once
    Spelling: Write the answer once

The answer is "span".

Length of an object is the distance-span of the object from one end to the other end. To specify the distance-span the standard-unit meter is defined.measurement of length The figure illustrates reference `1m` at the top-right corner and the length of line segment `bar(AB)` is measured as `3m` in reference to the standard-unit.

What is the standard unit of measure for length?

  • meter
  • meter
  • height

The answer is "meter"

The distance between two cities is `200000` meter. It is noted that the number is very large in some applications.

Which of the following help in simplifying such large values?

  • it cannot be simplified
  • a larger measure of length is defined such as `1` kilometer = `1000` meter.
  • a larger measure of length is defined such as `1` kilometer = `1000` meter.

The answer is "a larger measure of length is defined". Using the larger measure, the distance between two cities is given as `200` kilometer.

The length of a pen is very small to measure in `1` meter. It is noted that the number is very small in some applications.

Which of the following help in simplifying such small values?

  • it cannot be simplified
  • a smaller measure of length is defined such as `1` meter = `100` centimeter.
  • a smaller measure of length is defined such as `1` meter = `100` centimeter.

The answer is "a smaller measure of length is defined". Using the smaller measure, the length of a pen is given as `7` centimeter.

The basic unit "meter" is converted into smaller or larger units of lengths.

`1000` millimeter = `1` meter

`100` centimeter = `1` meter

`10` decimeter = `1` meter

`1` decameter = `10` meter

`1` hectometer = `100` meter

`1` kilometer = `1000` meter Remember the following:
"milli" is from a Latin root word meaning thousand
"centi" is from a Latin root word meaning hundred
"deci" is from a Latin root word meaning tenth
"deca" is from a Greek root word meaning ten
"hecto" is from a Greek root word meaning hundred
"kilo" is from a Greek root word meaning thousand


Among these, millimeter, centimeter, meter, and kilometer are widely used depending on the scale of the length measurement.

Length : The distance-span between two points is the length. It is measured in meter or in one of its other forms. Length is specified as a number in reference to the reference-prototype-standard meter (or in one of other derived or similar forms).

Which of the following explains the statement "length of the stick is `3` meter"?

  • it is just length
  • The distance-span of the stick equals `3` distance-spans given by the standard unit "meter"
  • The distance-span of the stick equals `3` distance-spans given by the standard unit "meter"

The answer is "The distance-span of the stick equals `3` distance-spans given by the standard unit meter".

                            
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