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Y11
SCIENCE REG.
INTERNAL
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Created by
Olivia Li
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The suitable IV ranges have...
5
values
Cover
suitable range
Evenly
spaced
Where to look for information?
Background
information
Table
Worst
fit -
best
fit
Best
fit + or -
difference
Comparison State for
Y-intercept
and
X
value: If the THEORETICAL VALUE fits into the range given by the graph.
For the graph you will
NEED
:
Vertical
error bars
Regression
Line
Symbols matching the title
Optional regression line WITH equation!
Uncertainty range
is the range of possible values for a variable of measurement
Questions to ask yourself when analysing repeat trials in an investigation
Have they achieved
concordant
results?
For this, investigation how much time would it take to complete
1
trial?
Repeat
trials are done to improve
precision
Short
amount of time (less than a day) do as
many
trials as you need to
get
(3)
similar
results.
Longer
amount of
time
(more than
1
day) at least
5
trials to allow for some results to be discarded if they are not consistent.
How do we compare data?
% difference = measure
value-expected value
/expected value *
100
%
Expected value =
Theotrical
value
An
outlier
is a data point that is
different
from the pattern of data
Outlier: Significant difference from the
major trend line
Outliers
compare to graph
, table or conculsion