Practical Questions Flashcards
What are all the fundamental quantities
Length, mass, time, current, temperature, amount of substance
What is the fundamental unit for length
Meters
What is the fundamental unit for mass
Kilograms
What is the fundamental unit for time
Seconds
What is the fundamental unit for current
Amperes
What is the fundamental unit for temperature
Kelvin
What i the fundamental unit for amount of substance
Moles
What are random errors
Errors caused by unknown and unpredictable changes in the experiment
What are systematic errors
Systematic error is consistent, repeatable error associated with faulty equipment or a flawed experiment design
What is precision
Precision refers to the closeness of two or more measurements to each other
What is accuracy
Accuracy refers to the closeness of a measured value to a standard or known value
What is a test for repeatability
Repeatability is the agreement between the results of successive measurements carried out under the same conditions of measurements
What is the test for reproducibility
Reproducibility is the agreement between the results of successive measurements carried out under different conditions of measurements
What is resolution
Smallest measurement in an apparatus
How to find the uncertainty in the gradient of a graph
Difference in gradient between best and worst lines
