Working as a Physicist - General questions
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Criticise the recording of data:
the student did not record to a consistent number of decimal places
the student did not record to a proper resultion
Why would a datalogger be suitable to collect data in an investigation?
The data has to be collected over a long period of time
collect precisely over set intervals
Accuracy Definition
When a measurement is close to the true value
Precision definition
a measure of the consistency of values obtained by repeated measurements
state why a recording of 45.043mm with a micrometre could not be justified
as there will be variations in positioning of micrometre
variations in the length of the tube
Describe the procedure to determine an accurate value for the external diameter of the tube
take multiple readings
at different positions
at different angles
calculate the mean
State the purpose of calculating a mean
t
systematic error definition
errors such as zero error, parallax error
Note 
Flashcards (20)