High college Physics help » Introductory principles » knowledge Independent and also Dependent Variables

A scientist procedures how much a fragment travels within a offered amount of time. Every second she steps how much it has actually gone, and also creates a graph of she results. What is the independent variable in this experiment?


Explanation:

An independent change is manipulated by the experimenter. Any changes made are predictable. The dependence variable reaction to alters made to the independent variable. Its transforms are not regulated by the experimenter and also can be tough to predict.

You are watching: Where is the independent variable on a graph

In this details experiment, the scientist is measuring exactly how the particle"s distance alters over a provided time. She is may be to regulate the amount of time that she measures, yet is only able to watch the street traveled.

In the graph, the live independence variable will be graphed top top the x-axis.


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Example question #2 : expertise Independent and Dependent Variables


When looking in ~ velocity in regards to distance and time, what is the elevation variable?


Possible Answers:

Acceleration


Distance


Time


Velocity


Displacement


Correct answer:

Time


Explanation:

There room a couple of ways to think of this question. The very first is to imagine you room graphing velocity. Because the equation is

*
, the displacement would certainly be ~ above the y-axis and also time would certainly be ~ above the x-axis. The x-axis is going to be wherein we placed our live independence variable.

The other way to think that this is to ask yourself what ours "inputs" and also "outputs" would certainly be if us were measure velocity. Imagine you"re walking down the street and also you document how far you travel every second. The moment is what you space "inputting" and also your distance took trip is her "output."


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Example inquiry #1 : knowledge Independent and also Dependent Variables


You are looking in ~ a graph that the activity of a vehicle. On the y-axis is displacement and on the x-axis is time. I beg your pardon of the complying with is the live independence variable?


Possible Answers:

Acceleration


Distance


Velocity


Time


Displacement


Correct answer:

Time


Explanation:

Independent variables room predetermined by the experimenter and also can be manipulated to adjust the measured dependent variable. Elevation variables are generally graphed top top the x-axis, if dependent variables are usually graphed ~ above the y-axis.

In this question, time is the elevation variable and displacement is the dependency variable. The experimenter can choose sampling times, yet cannot necessarily predict the displacement that will certainly be measure at each point. This specifies time as the independent variable.

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Example concern #1 : knowledge Independent and also Dependent Variables


Where is the independent change most generally displayed ~ above a graph?


Possible Answers:

Sometimes follow me the x-axis and also sometimes along the y-axis


Along the y-axis


The independent variable is not displayed


Along both the x- and y-axes


Along the x-axis


Correct answer:

Along the x-axis


Explanation:

The independent change is managed by the experimenter, when the dependence variable will certainly fluctuate based on independent variable inputs. The independent variable is always displayed top top the x-axis the a graph, if the dependence variable appears on the y-axis. Time is a usual independent variable, as it will not be affeced by any kind of dependent environemental inputs. Time have the right to be treated as a controllable consistent against which transforms in a system deserve to be measured.


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