Practice Significant Figures (1.2) - UNITS AND MEASUREMENT - CBSE 11 Physics

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9 questions

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6 sample questions

Question 1.
How many significant figures are in the measurement 0.0079?
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Focus on the non-zero digits.
Question 2.
What are the significant figures in the number 20304?
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Count all non-zero digits.
3Question 3.
What are significant figures used for in measurements?
- To express uncertainty
- To indicate precision
- Both A and B
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Think about what significant figures convey.
4Question 4.
True or False: The number 200 has two significant figures.
- True
- False
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Consider how trailing zeros affect the count of significant figures.
Question 5.
You measured the mass of a rock as 85.870 grams and volume as 40.0 cm³. Calculate the density and present it with the correct number of significant figures.
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Review how to round according to significant figures.
Question 6.
If you calculate 3.005 - 0.0056 and want to report the answer correctly, what should it be?
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Pay attention to the decimal places in subtraction.

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