OCR A-Level Physics B Modules 1&2 - Practical Skills

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Accuracy
A measure of how close a measurement is to the true value
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Accurate
Close to the true value
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Calibration
Determining the relation between output and true input value
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Iterative model
A mathematical treatment where small changes to variables are made at regular time intervals, Δt
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Percentage Uncertainty
The uncertanty given as a percentage of the measurement
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Precise
Repeated measurements are close together
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Precision
A measure of how close repeated measurements are to each other
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Random Error
An error in the results of an experiment which varies each time for the same setup
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Repeatable
An experiment can be repeated multiple times to achieve the same results
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Reproducible
An experiment can be repeated by someone else using different equipment or results to achieve the same answer
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Resolution
The smallest detectable change in input
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Response time
The time interval between a change in input and the corresponding change in output
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Sensitivity
The ratio of the output to the input
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Systamatic Error
An error in the setup of an experiment which is the same for every repetition using the same setup
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Valid
The results answer the origional question
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Validity
A measure of how well the results answer the origional question
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Zero error
The output for zero input
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Other cards in this set

Card 2

Front

Accurate

Back

Close to the true value

Card 3

Front

Calibration

Back

Preview of the front of card 3

Card 4

Front

Iterative model

Back

Preview of the front of card 4

Card 5

Front

Percentage Uncertainty

Back

Preview of the front of card 5
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