IHateClouds, I would argue that CVs and constants are not the same (they are scored differently in the rubric, for this reasoning, with the example of dropping something with a parachute attached:IHateClouds wrote: ↑December 10th, 2019, 7:28 ami interpret this differently? based on the way the rules were done this year, it looks like the controlled variables are the constants, but the control is the standard of comparisonMissAmagasaurus said:
I can't help you with 2 since I don't do the math sections, but I can help with 1!
A controlled variable is something in the experiment that you are not changing, but you could for a different experiment. For example, if you were doing an experiment on dropping a ball from different heights. One of your controlled variables could be the weight of the ball, since you aren't changing that in this experiment. The weight of the ball can be changed in a future experiment though.
A constant variable is something that does not change and you most likely will never be able to influence it. I usually use earth's gravity as a constant.
As a simple way to think about it, think about it like this. "What can I change in a related experiment" vs "This variable can not be changed."
CV (Controlled Variable): Something that you can actively change, but you are setting it at the same value across all trials for the purposes of the experiment (i.e. you could consistently change the value in another experiment). This would be like drop height or the mass of the object you drop.
Constant: Something that is by nature unchangable, and thus has to be a particular value. This would be like gravity --> It is still consistent, but you can't actually change it.
Control/SOC: A set of trials that is used to provide a baseline. This would be like just dropping the object without a parachute in order to provide a reference point.
This is how I interpret things, so I could be wrong, but I would definitely think your CV and your constants are different since they are scored differently on the rubric.