# Shifting the Focus of Temperature Conversion

Dr. Frost explains how to change the subject of a formula for converting temperature units, from Celsius to Fahrenheit, or vice versa, in order to simplify the calculations.

## About Shifting the Focus of Temperature Conversion

PowerPoint presentation about 'Shifting the Focus of Temperature Conversion'. This presentation describes the topic on Dr. Frost explains how to change the subject of a formula for converting temperature units, from Celsius to Fahrenheit, or vice versa, in order to simplify the calculations.. The key topics included in this slideshow are . Download this presentation absolutely free.

## Presentation Transcript

1. Changing the Subject of a Formula Dr Frost

2. Motivation The formula to calculate a temperature in Fahrenheit if we have the temperature in Celsius: But what if we had say the temperature in Fahrenheit, and wanted to know it in Celsius?

3. Motivation If we have some value of F, we can now more easily substitute it in to give us a value for C. C is now the subject of the formula .

4. Learning Objectives Be able to make a term the subject of a formula, possibly involving brackets, squared terms and square roots.

5. Solving an equation Solving an equation means that we make a given variable the subject of the formula. x = ?

6. Questions STP9A - Page 188 Exercise 9D: Q1, 3, 5. Exercise 9E: Odd questions.

7. Frost Conundrum At what temperature do we get the same reading regardless of whether we use Fahrenheit or Celsius?

8. Recap Make x the subject.

9. Questions Rayner page 176 Exercise 4 Exercise 5