Key Elements Of An Investigation

Question 1

What are the three types of variables in an investigation?

Answer 1

-Independent: What will change
-Dependent: What will be measured
-Control: What will be kept the same

Question 2

What should your investigation outline?

Answer 2

-Any measurements, and in a logical order
-A table of results
-How many repeats will you perform
-Any calculation necessary to perform
-A table containing headings, units and a consistent number of significant figures
-Remove anomalous results before calculating a mean

Question 3

What is required when creating an effective graph?

Answer 3

-As large as possible on the paper given
-Sensible intervals on the axis’
-Plots should be crosses not dots
-A line/curve of best fit which goes through as many points as possible
-A straight line graph follows the format - y = mx + c