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ZIMSEC A-Level Physics

1.1Physical Quantities and Units

Physical Quantities and Units in ZIMSEC A-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Overview

Form 5.

Learning objectives

What the syllabus expects you to be able to do.

  1. 1.1.1Understand and apply: SI units, prefixes and homogeneity.
  2. 1.1.2Understand and apply: scalars, vectors, adding and resolving vectors.

Lessons

  • Scalars and vectors: adding and resolving

    40 min

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  • SI base units, prefixes and homogeneous equations

    35 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Physical Quantities and Units: sample question

1 mark

Two forces of 7 N7\ \text{N} and 4 N4\ \text{N} act at a point; the angle between them can be anything. Which value could not be the magnitude of their resultant?

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