Verification Test Flashcards
What is data
Data is a term meaning all measurements or observations to describe something
What are the two types of data
Quantitative ative and Qualitative data
What is Quantitative data
It’s measurements that are written as numbers with units attached
What is qualitative data
It’s is data that can only be described in words
What is primary data
Primary data is that you or your team finds out by running your own experiments
What is secondary data
Secondary data is data which is the work of others people
What are mistakes
Are things that can be avoided if we take more care
How can mistakes occur
When u spill a material, read the method incorrectly, use the wrong equipment,
What are errors
Are not mistakes, they are small and unavoidable changes that occur naturally in measurements.
How do errors occur
They will happen no matter how careful you are
Typesof errors
Parallax error, reading errors, instrument errors and human reflex, zero errors
Parallax error
Your eye can’t be over the measurement you have to be directly parallel tot he measure the to read correctly
Reading error
U might have to estimate a measurement if it has no exact markings
Instrument errors
Maybe a piece of equipment is faulty and won’t give the right reading
Human reflex
Stopwatch is more accurate than use so no one will have the same reading and may differ in people