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Scientific Method
The scientific method is the basis of scientific investigation. A scientist will pose a question and formulate a hypothesis as a potential explanation or answer to the question. The hypothesis will be tested through a series of experiments. The results of the experiments will either prove or disprove the hypothesis. This category should contain questions and answers regarding the scientific method.
4,392 Questions
Hermann von Helmholtz
What is the solution casting method?
It is the simplest method used to create thin films from solution using centrifugal force. By drop small amount of polymer solution (or chemical solution) onto spinning head (mold or surface), then spin the solution (rpm for few seconds or minutes), the centrifugal force (force used for rotating around the motor) will provide enough force to spread the solution droplet into thin film layers spreading out on top of the surface (mold).
From the online dictionary:
1 a : to give a particular shape to : shape or mold into a certain state or after a particular model <form the dough into a ball> formed along republican lines> b :to arrange themselves in
2 : to give form or shape to :FASHION , CONSTRUCT
3 : to serve to make up or constitute : be an essential or basic element of
4 : DEVELOP , ACQUIRE<form a habit>
5 : to arrange in order : DRAW UP
6 a : to assume an inflection so as to produce (as a tense) <forms the past in -ed> b : to combine to make (a compound word) cipline formed by classical education>
2 : to give form or shape to :FASHION , CONSTRUCT
3 : to serve to make up or constitute : be an essential or basic element of
4 : DEVELOP , ACQUIRE<form a habit>
5 : to arrange in order : DRAW UP
6 a : to assume an inflection so as to produce (as a tense) <forms the past in -ed> b : to combine to make (a compound word)
What step of the scientific method immediately follows state the problem?
The following step would be to collect data and make observations, so that a hypothesis can be formed.
How is a theory different from a hypothesis?
A hypothesis is a guess in what you think it is a theory is a fact and someone already proved it in the past.
What is an example of an independent variable?
a kind of example is the amount of sunlight
* * * * *
No it is not!
The amount of sunlight given out by the sun depends on solar activity. It will be hugely greater in around 4.5 billion years when the sun becomes a red giant.
The amount of sunlight incident on some point depends on the location of that point. Somewhere on Mercury will get a lot more sunlight than on Neptune! Also even if you restrict yourself to points on the earth, there are differences between latitudes, the time of year, cloud cover and so on.
Even something that is apparently as independent of everything else, such as time, is not quite that independent. Gravity affects it.
An independent variable is determined not by the variable itself but by the context of the "experiment". It is (or they are) variable(s) that affect the dependent variables but are not affected by them. An independent variable in one experiment may be the dependent variable in another.
For example:
age and height of people: I would say that age is independent and height is dependent.
height and membership of basketball team: I would say height is independent and membership is dependent.
Places where the seafloor is forced under continental plates?
The region where the seafloor is forced beneath the continental plate is called a subduction zone. When the seafloor descends down it produces a deep-ocean trench.
Rat poison does indeed dissolve if it is in powder form. This does not mean that it looses its potency though.
What will happen if the mongo seed is exposed to wet cotton and left for 5 days?
the seed will sprout
What is a Simple vs complex hypothesis?
A simple hypothesis is one in which all parameters of the distribution are specified. For example, if the heights of college students are normally distributed with, the hypothesis that its mean is, say,, that is , we have stated a simple hypothesis, as the mean and variance together specify a normal distribution completely. A simple hypothesis, in general, states that where is the specified value of a parameter, ( may represent etc).
A hypothesis which is not simple (i.e. in which not all of the parameters are specified) is called a composite hypothesis.For instance, if we hypothesize that (and) or and, the hypothesis becomes a composite hypothesis because we cannot know the exact distribution of the population in either case. Obviously, the parameters and have more than one value and no specified values are being assigned. The general form of a composite hypothesis is or, that is the parameter does not exceed or does not fall short of a specified value. The concept of simple and composite hypotheses applies to both null hypothesis and alternative hypothesis.
What are the lovejoy hypothesis?
Owen Lovejoy, an expert in evolution, suggested that living beings such as primates made the transition from walking on all fours to walking on their legs (or bipedalism) in order to facilitate the use of the hands.
What did Bowlby's maternal deprivation hypothesis predict?
Bowlby predicted that maternal deprivation would lead to delinquency and affectionless psychopathy. Maternally deprived infants cannot interact with people the same way others do.
http://www.s-cool.co.uk/alevel/psychology/attachments/effects-of-deprivation-and-privation.html
What is the differnece between experimental hypothesis and directional hypothesis?
The experimental hypothesis, if stipulated like this, does not imply to be taking any specific direction in its prediction. Hence we will be in a situation were it will only refer to as either, a difference or a correlation only, the experiemntal hypothesis. However, if we decide to give direction to the experimental hypothesis, then we will have to add some information to the stipulation focusing on whether we predict that the difference involved will specifically cause an increase or decrease of the dependent variable(s), the directional hypothesis.
Objects do this in water when the upthrust is big enough?
it capacitates, at least that's what my friends told me? LOL;} hope that was help(thumbs up)
What is an operational definition of mass?
Operational definition in another words how would you find the mass ?
Zero out the balance, place the mass object on the pan, move the riders until it balanced, and finally record the mass.
Does tap water or salt water cause metals to rust faster and why?
Most likely salt water. The salt accelerates the rate of corrosion, plus it has the oxygen needed for the metal to rust. Tap water has the oxygen too but with the salt also, it would cause the metal to rust more rapidly.
The clinical or scientific method of research?
The scientific method has four steps
1. Observation and description of a phenomenon or group of phenomena.
2. Formulation of an hypothesis to explain the phenomena. In physics, the hypothesis often takes the form of a causal mechanism or a mathematical relation.
3. Use of the hypothesis to predict the existence of other phenomena, or to predict quantitatively the results of new observations.
4. Performance of experimental tests of the predictions by several independent experimenters and properly performed experiments.
What are 3 properties of nonmetals?
3 physical properties of non metals: 1- they are mostly in the form of liquids and gases but some also exits as solids. 2-they absorb light and do not have much luster even on polishing. 3- they are bad conductors of heat and light due to the presence of metallic bond between its atoms...... ur retarted
Ex hypothesi: According to assumptions, based on assumptions. (New Latin ex hypothesi : Latin ex, out of, by + Latin hypothesi, ablative of hypothesis, hypothesis)
What are the 8 steps to a scientific method?
there are nine stages or steps for social scientific research
1. choosing the research problem
2. reviewing the literature
3. state a hypothesis
4. formulate a research design
5. gathering data
6. coding and analysing data
7. interpreting the results to test hypothesis
8. presenting the results
9. replication *(if required)
Answer by AbduL Ghani Hashmi , BS (Hons) Communication & Media Studies Hazara University mansehra
