Through time, models have been one of the key features that helped to produce knowledge of the world. A model is defined as a representation of a system that allows for investigation of the properties of the system and, in some cases, prediction of future outcomes. Models can be used in a variety of different ways, for example, having a vital role in science by allowing scientists to create a visual representation of their hypotheses that enables them to understand the theories behind their experiments more thoroughly. Models in science can be specifically defined as a systematic description of an object or phenomenon that shares important characteristics of the object or phenomenon. However, models are not always considered the most accurate …show more content…
Hence, this essay will focus on the advantages and disadvantages of using models to produce knowledge in both human and natural science. Natural science is a system of knowledge of the natural world largely based on observations and constructed using reason and imagination. Therefore, models are vital in natural sciences as it allows the scientists to map out certain predictions that they have on how certain aspects of the natural world will change or remain the same. A pivotal model in discovering the structure of an atom is a model known as the “plum pudding model”. J.J Thompson, who discovered the electron, proposed this model in 1904 , where he believed that the structure of an atom resembled the English dessert – plum pudding. The raisins dispersed amidst the plum pudding are analogous to negatively charged electrons immersed in a sea of positive charge. This model helped scientists to imagine and understand how an atom is structured and how atoms interact with each other. With the knowledge produced from this model, scientists have derived expressions for constants, such as the Rydberg constant in terms of elementary terms, done by Arthur Erich Haas, who expressed Planck’s constant in terms of the mass and the radius of the hydrogen …show more content…
Despite the fact that the plum pudding model has helped develop further research to find out the structure of the atom, it was still just a model and it was not the most reliable source of information, as it was overturned by a more scientific model just a couple of years later. Niels Bohr proposed his model of the atom in 1913, where he described it as a positively charged nucleus, comprised of protons and neutrons, surrounded by a negatively charged electron cloud. In the model, electrons orbit the nucleus in atomic shells . Due to the fact that models are only just representations and not the real things, the knowledge gained only through models can be unreliable and not accurate.The human sciences corresponds to humanities and social sciences, but also includes aspects of psychology and even mathematics, as one of the key things we are concerned with is how we gather information in our study of human behaviour . Models are usually in the form of simulations in human sciences, especially in business and economics. An economic model can be specifically defined as being a simplified description of reality, designed to yield hypotheses about economic behaviour that can be
What data might be collected by the evaluating occupational therapist if he or she is guided by the PEOP Model and why?
Ultimately the development of previous inferences and observations which have developed our current model for the Earth’s composition and interior structure are a key concept in understanding our future developments towards resourcing our planet and understanding how it works to a further degree.
In "Energy Story" uses an explanation of atoms and tells us the parts of an atom and its structure. In the text it
Physicist in the 1900 first started to consider the structure of atoms. The recent discovery of J. J. Thomson of the negatively charged electron implied that a neutral atom must also contain an opposite positive charge. In 1903 Thomson had suggested that the atom was a sphere of uniform positive electrification , with electrons scattered across it like plum in an pudding. (Later known as the Plum Pudding Model)
Dalton’s atomic theory, which stated “the atoms were tiny, indivisible, indestructible particles” (Bender), differed drastically from that of the Greeks’ in that it “wasn’t just a philosophical statement that there are atoms because there must be atoms” (Bender). Although Aristotle believed that there are four terrestrial elements, earth, water, air, and fire, Democratus believed that “a piece of a substance can be divided into smaller pieces of that substance until we get down to a fundamental level at which you can’t divide the substance up and still have pieces of that substance” (“Atoms”). Aristotle’s theory was popular, but incorrect; Democratus’s was closer to our current theory, yet he remained relatively unpopular and obscure. This demonstrates of the key way in which a personal point of view can, in fact, retard the pursuit of knowledge. The scientist with the better oratory abilities has his theories more widely accepted. Dalton’s own theory, which extrapolated upon four basic
A theory can lead to the development of a model which provides a visual representation and explanation of the scientists’ understanding. A model can assist in predicting what could happen if a particular incident occurs. An example of a model is the Niels Bohr model of the atom.
The amazing transformation the study of physics underwent in the two decades following the turn of the 20th century is a well-known story. Physicists, on the verge of declaring the physical world “understood”, discovered that existing theories failed to describe the behavior of the atom. In a very short time, a more fundamental theory of the ...
Most people would say that the model family is two biological parents and two kids, but if you look into how families in reality are, we are nothing like that. Generations have changed, tolerances have risen, non acceptable things have become acceptable. Grandmas and grandpas today frown upon the way our families have evolutionized. The way their generation was raised and the families they were raised in makes them have their own ideas of how families should be rather than how they are now. More and more diverse living styles are now considered families. Families have changed so much over the years that the model family is virtually nonexistent.
A model is a simplified representation of the structure and content of a phenomenon or system that describes or explains the complex relationships between concepts within the system and integrates elements of theory and practice (Creek et al 1993).
In 1907, Einstein used Planck’s hypothesis of quantization to explain why the temperature of a solid changed by different amounts if you put the same amount of heat into the material. Since the early 1800’s, the science of spectroscopy had shown that different elements emit and absorb specific colors of light called “spectral lines.” In 1888, Johannes Rydberg derived an equation that described the spectral lines emitted by hydrogen, though nobody could explain why the equation worked. This changed in 1913 when Danish physicist Niel Bohr applied Planck’s hypothesis of quantization to Ernest Rutherford’s 1911 “planetary” model of the atom, which affirmed that electrons orbited the nucleus the same way that planets orbit the sun. Bohr offered an explanation for why electrical attraction does not make the electrons spiral into the nucleus. He said that electrons in atoms can change their energy only by absorbing or emitting quanta. When an electron absorbs a quantum it moves quickly to orbit farther from nucleus. When an electron emits a quantum the electron jumps to a closer
The Atomic Theory began in roughly 400BC with Democritus in Ancient Greece and is universally believed to be correct today. Democritus who was born in 460 BC and died 370 BC and is known as the father of modern science. Democritus proclaimed that everything is made up of atoms. He continued his theory to say that atoms will always be in motion, between atoms there is empty space, atoms are unbreakable, there are an infinite number of atoms all different sizes and shapes. He also said that iron atoms are solid and strong and have hooks to lock them together, water atoms are smooth and slippery, salt atoms have sharp jagged edges because of its taste and air atoms are light and spiralling.
The Andragogical model is characterized by six assumptions that have emerged from research. The first assumption titled, “the need to know” describes the idea that, “Adults need to know why they need to learn something before undertaking to learn it” (Knowles, Holton & Swanson, 2015, p. 43). “The learner’s self-concept”, describes the second Andragogical model assumption as, “Adults have a self-concept of being responsible for their own decisions, for their own lives” (Knowles et al., 2015, p. 44). The third assumption of the Andragogical model is “the role of the learners’ experiences”. Knowles et al. (2015), describe this as, “Adults come into an educational activity with both a greater volume and a different quality of experience from that of youths” (p. 44). “Readiness to learn” describes the fourth Andragogical model assumption as, “Adults become ready to learn those things they need to know and be able to do in order to cope effectively with their real-life situations” (Knowles et al., 2015, p. 45). The fifth Andragogical model assumption is “orientation to learning”. Knowles et al. (2015), describes this level as, “Adults are motivated to learn to the extent that they perceive that learning will help them perform tasks or deal with problems they confront in their life situations” (p. 46). “Motivation” describes the sixth level
In addition to this use of models, the natural sciences also use models to illustrate observations. When looking through a microscope one would need to model the cell or any such microscopic being, however it is impossible, as well as illogical, to grab wha...
Dalton was the first person to develop a scientific atom theory, the ancient Greeks had ideas about the atom but could not prove it scientifically.
Are any scientific theories true? If so why? If not why do we rely on them?