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Physics Summary - Coggle Diagram
Physics Summary
Lesson 2
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How to convert
- See if the conversion is from bigger to smaller, or smaller to bigger
- Decide if you will multiply or divide
- Choose your exponent according to the prefix
Scientific Notation is a method of expressing number to a form of decimals multiplied by 10 to the power of (x)
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Significant figures
Addition & subtraction
If you add or subtract, the answer is rounded to the same number of decimal places as the measurement with the least number of decimal places
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If we look after the decimal point, 12.02 only has 2 digits while 3.056 has 3, so we will take the least and in our final answer there will be only 2 digits after the decimal point
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The 6 after the 7 in our number is more than 5, so we will round 7 up to 8
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