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Science
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Use measuring instruments with higher accuracies and compare the measurements in terms of accuracy, consistency and sensitivity
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Define length
Distance between two points
units used to measure length
Millimetres (mm), centimetres (cm) or kilometres (km)
The usage of vernier caliper
It can measure the thickness of outer diameter, inner diameter and depth of an object
Why is Vernier caliper more accurate compared to a ruler
Vernier caliper has a finer scale than a ruler, and it can measure up to 0.02 mm.
systematic error
It is an error caused by using measuring instruments that are not accurate
How can we determine zero error in Vernier calipers
Zero error can be determined when the jaws of the vernier calipers are closed
Define mass
Mass is the quantity of matter in an object
How can we measure mass accurately and precisely
Mass can be measured using digital electronic balance
How can we measure time accurately
Time can be measured using a stopwatch accurately to 0.01 second
measure electric current in a circuit
Ammeter is used to measure electric current in a circuit
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Use measuring instruments with higher accuracies and compare the measurements in terms of accuracy, consistency and sensitivity
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