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Physical Quantities and Units (AS CIE)

Categories AS Physics CIE

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Course Curriculum

1.1 Physical quantities

understand that all physical quantities consist of a numerical magnitude and a unit

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make reasonable estimates of physical quantities included within the syllabus

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Quiz 1

1.2 SI units

recall the following SI base quantities and their units: mass (kg), length (m), time (s), current (A), temperature (K)

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express derived units as products or quotients of the SI base units and use the derived units for quantities listed in this syllabus as appropriate

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use SI base units to check the homogeneity of physical equations

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recall and use the following prefixes and their symbols to indicate decimal submultiples or multiples of both base and derived units: pico (p), nano (n), micro (μ), milli (m), centi (c), deci (d), kilo (k), mega (M), giga (G), tera (T)

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Quiz 2

1.3 Errors and uncertainties

understand and explain the effects of systematic errors (including zero errors) and random errors in measurements

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understand the distinction between precision and accuracy

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assess the uncertainty in a derived quantity by simple addition of absolute or percentage uncertainties

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1.4 Scalars and vectors

understand the difference between scalar and vector quantities and give examples of scalar and vector quantities included in the syllabus

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add and subtract coplanar vectors

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represent a vector as two perpendicular components

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Level

Intermediate
Last Updated

August 18, 2023

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