Chapter 01: Measurements

This is a first chapter of the book Physics 11 published by Punjab Curriculum and Textbook Board, Lahore, Pakistan.

After studying this chapter the students will be able to:

• Understand what is Physics.
• Understand that alt physical quantities consist of a magnitude and a unit.
• Recall the following base quantities and their units: mass (kg). length (m). time (s), current temperature (K). luminous intensity (cd) and amount of substance (mol).
• Describe and use base units. supplementary units. and derived units,
• Understand and use the scientific notation.
• Use the standard prefixes and their symbols to indicate decimal sub-multiples or multiples to both base and derived units.
• Understand and use the conventions for indicating units.
• Understand the distinction between systematic errors and random errors.
• Understand and use the significant figures.
• Understand the distinction between precision and accuracy.
• Assess the uncertainty in a derived quantity by simple addition of actual. fractional or percentage uncertainties.
• Quote answers With correct scientific notation. number of significant figures and units in all numerical and practical work.
• Use dimensionality to check the homogeneity of physical equations.
• Derive formulae in simple cases using dimensions.

Please download the PDFs for detailed notes.