Dependent upon the variables, you need to take into consideration factors that can affect the outcome of the result; what will make the result vary in any way.
If this, for example, entails the variable to be kept constant time, you will monitor the time and repeat it throughout the experiment.
This is my understanding of constant variables; hope this helped.
The two types of variables are the CONSTANT and CONTROL.
The Control Variable
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No they are not the same. A constant variable keeps going at a constant rate.
In programming, variables change all the time. In scientific testing you control variables to determine what other changes occur.
The variables that you keep the same between the control and experimental groups are the constant variables.
The two types of variables are the CONSTANT and CONTROL.
The constant or the control.
The Control Variable
It means that except for the independent variable (the only factor that you change) you remain the other variables constant. To keep the control variables the same. Then this is a controlled experiment (fair test). Hope this helps :)
If you're performing an experiment in which your result depends on multiple variables, but you're just interested in how one of those variables effects the result, you would generally keep all of the other variables constant in order to negate their effects. Those variables that you're keeping constant are called control variables, and you would choose them based on the experiment. For example, say you wanted to determine how changes in resistance effect a circuit's current. Well, current is dependent on not only resistance, but voltage as well, and since you're only interested in the effects of resistance, you would make voltage the control variable, keeping it constant.
When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the control variable. The control variable is something that is constant and unchanged in an experiment, and is held constant to test the relative impact of independent variables.
Constant variables are constant, they do not change. Derived variables are not constant. They are determined by the other values in the equation.
It is the variables you will not change to keep the experiment a fair test, they should be kept constant to show how your independent variable affects your dependant variable.
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When you keep doing something seach online
The control variables.