Question

What is motion and what observations are needed to describe quantitatively and qualitatively motion?

Answer 1

Motion is the action of changing location or position. The study of motion without regard to the forces or energies that may be involved is called kinematics.It is the simplest branch of mechanics. The branch of mechanics that deals with both motion and forces together is called dynamics and the study of forces in the absence of changes in motion or energy is called statics.

The objective of quantitative research is to develop and employ mathematical models, theories and hypotheses pertaining to natural phenomena. The process of measurement is central to quantitative research because it provides the fundamental connection between empirical observation and mathematical expression of quantitative relationships.

The term quantitative research is most often used in the social sciences in contrast to qualitative research. It is basically an observation.




Examples of qualitative statements/observations:

The freezing point of water is colder than the boiling point.

The sun is very bright.

A liter of water is heavier than a liter of ethanol.


Examples of quantitative statements/observations:

The freezing point of water is 0 °C and the boiling point is 100 °C.

The sun's intensity on earth is 100 W m-2.

A liter of water weighs 1000 grams and a liter of ethanol weighs 789 grams