Practical Questions Flashcards
1
Q
What apparatus would reduce the uncertainty of a measurement?
A
the one with the highest resolution as there would be fewer random errors and so lower uncertainty/percentage error
2
Q
What are some rules for scientific drawings?
A
- line drawing with continuous and non-overlapping lines
- no shading
- quite large
3
Q
What is the definition of precision?
A
results have a small standard deviation
4
Q
What is the definition of accuracy?
A
mean result is close to the correct value
5
Q
What is the independent variable?
A
The independent variable is the cause. Its value is independent of other variables in your study
6
Q
What is the dependent variable?
A
The dependent variable is the effect. Its value depends on changes in the independent variable
