Get some common sense you piece of bumblefuc k.
Yes you can, but the more variables you have the more complex the problem becomes.
The outcome of the experiment may not be linked to any one specific variable.
You can have more than one variable, but it would take longer to solve.
if you change more than one variable, you will not know which one has had an effect on the experiment. If the outcome changes when one variable is altered, then the change can only be due to the one variable, by logical deduction.
because they want to get an acurate result
no
Yes, an experiment can have more than one hypothesis. Multiple hypotheses allow researchers to explore different potential explanations for a phenomenon. Each hypothesis can be tested separately in the experiment to determine which one is supported by the evidence.
It really depends on what the experiment is.
Yes you can, but the more variables you have the more complex the problem becomes.
yes it can I've done a few experiments that have had more than one independant variable.
The outcome of the experiment may not be linked to any one specific variable.
A controlled experiment is an experiment where there are limited or no variables other than the one you are testing for.
You can have more than one variable, but it would take longer to solve.
if you change more than one variable, you will not know which one has had an effect on the experiment. If the outcome changes when one variable is altered, then the change can only be due to the one variable, by logical deduction.
because they want to get an acurate result
Because you can't be sure what about the variable is changing or how it changes. The different factors of the variable can also change the experiment in different ways, therefore making the experiment more complicated.
It is important to only change one variable at a time when doing an experiment, because if you change more than one, there will be uncertainty as to which one affected the result.