One variable that needs to be controlled is the number of coils of the electromagnet as the more coils the stronger the magnetic force, so the same number of coils should be used for each test.
"Controlled Variable" or "Manipulated Variable"
the things you change
An independent variable is a variable that is manipulated or controlled by the researcher in an experiment to determine its effect on the dependent variable. It is the variable that is changed or varied to observe its impact on the outcome.
A controlled experiment is when only one variable, the manipulated variable, is changed at a time to observe its effect on the dependent variable, while keeping all other variables constant. This approach helps to determine the specific impact of the manipulated variable on the outcome of the experiment.
The presence of living organisms in the meat jars was not a controlled variable in Redi's experiment on spontaneous generation. This variable was dependent on the conditions set by Redi, rather than being controlled by him.
The controlled variable for an electromagnetic experiment is the variable that is kept constant and unchanged throughout the experiment. This ensures that any changes in the results are due to the manipulation of the independent variable and not other factors.
controlled variable is something that is controlled by the independent variable
The variable that depends on the controlled variable is typically the dependent variable. This variable is measured or observed to see how it responds to changes in the controlled variable during an experiment or study.
controlled variable is something that is controlled by the independent variable
A controlled variable is a setting where the dependent variable is not controlled by the independent variable. For example, if you were trying to measure the rate of movement in an organism in highly salty concentrations, a controlled variable would include the organism in an environment with no salt at all.
The independent variable is intentionally controlled by the experimenter. This variable is manipulated to determine its effect on the dependent variable.
The controlled variable is the one that you chose to change while the dependant is the variable that changes because it is effected by the controlled variable
"Controlled Variable" or "Manipulated Variable"
manipulated variable
The independent variable.
constant variable
a control variable is a variable that needs to be controlled