experiment design Flashcards
1
Q
what is the controlled variable
A
these are the variables which are kept the same throughout.
2
Q
what is the independent variable
A
CAUSE - the variable you purposefully change
3
Q
what is the dependent variable
A
EFFECT - the variable that changes as a result of the change in independent variable
4
Q
what is the purpose of a controlled experiment
A
to prove only the independent variable is the variable that is changing to the dependent variable
5
Q
what does repeating experiments lessen the chance of
A
the results being atypical or caused by an error or fluke
6
Q
when are semi-log graphs used
A
they are used for numerical data which increases rapidly or in large steps
7
Q
do you need to quote data
A
yes!!
8
Q
what should be included in a conclusion for an experiment
A
- they should relate to the aim of the experiment or a piece of field work.
- it should relate to the independent and dependent variables
- do NOT simply restate the results
