Physics·Scientific processes · NSSCO 1.1
Maths for physics: numbers, proportion & formulae
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Physics is measuring the world and then doing sums with what you measured. Before any of the physics, we sharpen the number skills you'll use all year — the four operations with correct rounding, averages, fractions, percentages, ratios and reciprocals, direct and inverse proportion, positive and negative indices, quick estimating, and rearranging equations like x = y + z and x = yz.
What you'll learn in this lesson
By the end you should be able to (NSSCO Physics 1.1):
- Add, subtract, multiply and divide, rounding the answer correctly
- Use averages, decimals, fractions, percentages, ratios and reciprocals
- Use direct and inverse proportion
- Use positive and negative whole-number indices and exponents in calculations
- Make approximate (rough) evaluations of numerical expressions to check answers
- Solve equations of the form x = y + z and x = yz for any one term when the other two are known
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