TOPIC: Calibration AIM: Why is knowing calibration important DO NOW: CONVERT 10 km to _______m
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Transcript of TOPIC: Calibration AIM: Why is knowing calibration important DO NOW: CONVERT 10 km to _______m
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TOPIC: CalibrationAIM: Why is knowing calibration importantDO NOW: CONVERT10 km to _______m0.4 g to ______kg560 mL to ______kL.009 cm to _____ mL3
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What is Calibration?
Calibration of measuring device is distance between two closest two closest lineslines
(NNotot distance between two closest #!)
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Not all graduated cylinders are calibrated the same way
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? ? capacitycapacity of large graduated cylinder?
?? calibration calibration of large graduated cylinder?
1000 1000 mlml
10 ml10 ml
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Calibration = ?Calibration = ? 1 ml1 ml
source
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Calibration = ?Calibration = ? 1 ml1 ml
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Calibration = ?Calibration = ?1 ml1 ml
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Calibration = ?Calibration = ?0.2 ml
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Here are some other pieces of lab equipment.
Can you figure out the calibration of each?
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meter stick: two closest lines are 1 millimeter apart
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Calibration = ?Calibration = ? 50 ml50 ml
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Calibration = ?Calibration = ?25 ml25 ml
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This is a quadruple beam balance
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What’s the calibration? 0.01 gram
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This is a buret [unlike graduated cylinder, numbers go down, so you read downwards]
The calibration is:
0.1 ml0.1 ml
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So why is knowing calibration important?
When you measure you measure to one place past the calibration.
You told me the calibration was 1 ml, so the answer has to go to 1.0, 1.1, 1.2, 1.3, etc