Experiment Design Qs Flashcards
0
Q
Suitable control for our experiment?
A
?
1
Q
Importance of controls
A
See negative result
Eliminate poss s/t other than IV produced results
Know diff is due to IV
2
Q
Controlled variables in our exp?
A
?
3
Q
IV in our exp?
A
Leaf?
4
Q
DV?
A
Length of leaf?
5
Q
How would you make your results more reliable?
A
Repeat experiment at each??
6
Q
How would repeats make results more reliable?
A
Identify & remove anomalies
+ reliable mean
7
Q
Is data valid?
A
(Y) data =valid. MM only affected by single IV
(Y) = high degree of accuracy
(N) = no repeats
8
Q
Use the data to.. Determine _____?
A
Plot graph
L of bf
Where line crosses
9
Q
How and why it’s better to take additional readings?
A
L of b = + precise
Estimation of ____ closer to tv
10
Q
Key maths
A
% proportion and ratios %in. & dec Magnification Graphs Dilution// stock Rate of change // gradients
