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PHYSICS AND PHYSICAL MEASUREMENT

1 Measure
2 Mech
3 Therm
4 Waves
5 Electric
6 Fields
7 Atomic
8 EPCC
9 MIF
10 Therm AHL
11 Wave Phen
12 EMI
13 QNP
14 Digital
OPT
PRAC
REVIS
USEFUL DOCUMENTS
IB Physics Measurement objectives in a Google doc
IB Physics Measurement Definitions and Concepts
PRACTICE QUESTIONS
IB Physics Core practice questions on Measurement (DBQs).pdf
Combined IB Measurement SL prac qs 0910.pdf

1.1 THE REALM OF PHYSICS

State and compare quantities to the nearest order of magnitude.
Scale of the Universe - link to awesome presentation about scale
table_of_OM_lengths.png
State the ranges of magnitude of distances, masses and times that occur in the universe, from smallest to greatest.
SIZE OF THE UNIVERSE INFOGRAPHIC - from onlinescholing.net
State ratios of quantities as differences of orders of magnitude.
Estimate approximate values of everyday quantities to one or two significant figures and/or to the nearest order of magnitude.
UNIVERSCALE - link to cool website by Nikon
BIG NUMBERS AND STUFF PART 1 Richard Feynman talks about big numbers...
BIG NUMBERS AND STUFF PART 2 Feynman talks about black holes and quasars...
VERNIER SCALE APPLETMICROMETER SCREW GAUGE APPLET
Micrometer.gif

1.2 MEASUREMENT AND UNCERTAINTIES

WALTER LEWIN AT MIT ON UNCERTAINTIES AND DIMENSIONAL ANALYSIS

PRACTICE DATA-BASED QUESTIONS

The SI system of fundamental and derived units

State the fundamental units in the SI system.
SI_units_subway_map.gif
Distinguish between fundamental and derived units and give examples of derived units.
Convert between different units of quantities.
State units in the accepted SI format.
State values in scientific notation and in multiples of units with appropriate prefixes.
SI_unit_prefixes.jpg

Uncertainty and error in measurement

Describe and give examples of random and systematic errors.
random_and_systematic.jpg
Distinguish between precision and accuracy.
AccuracyPrecision.gif
uncertainty.gif
Explain how the effects of random errors may be reduced.
Calculate quantities and results of calculations to the appropriate number of significant figures.
sig_figs.jpg

Uncertainties in calculated results

State uncertainties as absolute, fractional and percentage uncertainties.
IB_databook_uncertainty_formulas.png
Determine the uncertainties in results.
Identify uncertainties as error bars in graphs.
error_bars.png
State random uncertainty as an uncertainty range (±) and represent it graphically as an “error bar”.
gradient_uncertainty.gif

Determine the uncertainties in the gradient and intercepts of a straight line graph.

1.3 VECTORS AND SCALARS

Distinguish between vector and scalar quantities, and give examples of each.
vectors_and_scalars.gif
Determine the sum or difference of two vectors by a graphical method.
vector_sum.gif
vector_subtraction.jpg
Resolve vectors into perpendicular components along chosen axes
IB_DB_vector_formulas.png