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Physics As-level | Errors and uncertainties
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______ errors cause unpredictable fluctuations in an instrument’s readings as a result of uncontrollable factors, such as environmental conditions.
Random errors
______ errors arise from the use of faulty instruments used or from flaws in the experimental method.
Systematic errors
The ______ of a measurement is how close the measured values are to each other.
Precision
The ______ of a measurement is how close a measured value is to the true value.
Accuracy
When does we use | ± half the smallest division | to find uncertainties?
The uncertainty in a reading (e.g. from a voltmeter)
In what kind of situation we use | at least ±1 smallest division | to find uncertainties?
The uncertainty in a measurement (e.g. from a ruler)
In what kind of situation we use | i.e. ± ½ (largest - smallest value) | to find uncertainties?
The uncertainty in repeated data
In what kind of situation do we use | ± the last significant digit unless otherwise quoted | to find uncertainties?
The uncertainty in digital readings
What is the correct reading on the thermometer and the uncertainty in this reading?
Reading - 24.0 *C, Uncertainty in reading
What is the correct answer for this question?
D
What is the correct answer for this question?
B
What is the correct answer for this question?
D
What is the correct answer for this question?
B
What is the correct answer for this question?
D
What is the correct answer for this question?
D
Jump 15 times in one leg to gain 25 marks!
Great job, buddy!
What is the correct answer for this question?
A
What is the correct answer for this question?
D
Tell any poem by memory to gain 20 marks!
Great job, buddy!
Choose any number to potentially gain 25 marks!
Odd number - 25 marks, even number - loser
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