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Because the measurement usually requires putting the measurement device in the experiment. Just observing an experiment effects it because you are interpreting the results.
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What are Precautions and sources of error of diffraction grating experiment?
taking the measurements
What variable is unchanging?
In an experiment, your control variable will not be caused to vary by the experiment. Think of 'cause and effect'. The independent variable is the cause, the result is the effect, and the dependent variable is the one that you leave to be changed by the experiment.
What do you call an experiment with only one variable?
Well in the case that it does have a variable, even just one, it would still be a variable experiment because that one part of the experiment may still cause a different effect/result when changed!!!
What is an effect of bias?
It makes an experiment less objective.
How do you know if your measurements are accurate?
If it is within a certain percent error decided by whoever your doing the experiment for. As a standard I would pick 5 percent but it regards to medication it needs to be around 0.02 percent.
What is an observation and measurements recorded during an experiment?
The observations and measurements recorded during an experiment are called data. It is important to keep accurate data in order to understand the results of the experiment.
How does the manipulation of an independent variable during a scientific experiment allow a scientist to find a cause and effect?
The manipulation of an independent variable during a scientific experiment allows a scientist to find a cause and effect relationship between variables. This is because the manipulation changes the results and measurements.
What is often included in a science experiment?
measurements
Are recorded facts and measurements from an experiment?
yes
What are the measurements recorded in an experiment called?
Observations.
How does the manipulation of an independent variable during a scientific experiment allow a scientist to find a cause-and-effect relationship between variable?
The manipulation of an independent variable during a scientific experiment allows a scientist to find a cause and effect relationship between variables. This is because the manipulation changes the results and measurements.
What it is Observation and measurements recorded during an experiment?
data
What must be true of a conclusion to a controlled experiment?
- All measurements must be correct.- Data processing must be correct.- The relation cause-effect must be correctly definited.
Recorded facts ir measurements from an experiment?
its biology and PFLYERS
What refers to the observations and measurements recorded during an experiment?
N
This refers to the observations and measurements recorded during an experiment?
data
In an experiment a model can help a scientist do what?
Figure out what measurements to make.
