Some types of variable star vary very regularly, and their time of maximum and minimum can be found from data. Others are irregular and the only way to find the maximum and minimum is to keep observing them and measuring the brightness.
No, it is a continuous process but not a continuous variable. The magnitude of star-shine, across all stars is a continuous variable. The magnitude of a star's shine over time is a continuous variable.
If I am not mistaken, the question should be "What is an independent variable?" The answer is this: An independent variable is a variable whose results are independent of all the other variables measured in the data sets/experiment. For an exaggerated example, if one were to perform Van de Graff Machine experiment where the values measured are Static Energy, Time, and The Number of Stars Present in the Sky, one would be likely to find the Statics Energy and Time would have a direct relationship whereas The Number of Stars Present in the Sky would have no relationship to Static Energy or Time.
When graphing in science, the independent variable is the variable graphed on the x-axis; the dependent variable is the variable graphed on the y-axis. To determine the name of the variable, one only needs to find the variable changed by the other variable and the variable remaining unaffected by the other variable. For example, someone wanted to find the the increased temperature of water over a stove during a period of time. Since increasing water temperature cannot affect time and increasing time can affect the water becomes the dependent variable and time becomes the independent variable.
there are three variable are to find but in newton only one variable is taken at a time of a single iteration
who to control one variable at time
Get in your car.Drive to the main office.That will give you a minimum time.How long it actually takes is highly variable and it's not really possible to give you an answer.
The manipulated variable is what you change (the shape of the container) The responding variable is the result (the temperature at which the water in the container freezes). (Don't forget the time factor!)
Nothing, but you can speak about the lifetime of a variable: the time-interval in which the variable exists.
No. If you are studying waiting time, for example at a bank, the waiting time could be the dependent variable with the number of open windows as the independent variable.
Time is often an independent variable.
An independent variable is the variable that was changed. The dependant is what was measured. Eg. If you filled 3 cups of water - one with 1/4 of a cup, one with half a cup and one with 3/4 of a cup. Then you grab a spoon to find the highest note, then the amount of water is the independent variable and the sound is the dependant.
Time is an independent variable because it is affected only by when you decide to stop to read its position (not affected by the position). However, time is a dependent variable since the time you record it affects its result. In simpler terms, independent variable is something you can change to alter the dependent variable. You can change the time (0s to 15s etc.) but you cannot change the position.