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Scientific Notation and Significant Figures MCQs with Answers

Scientific Notation and Significant Figures MCQs

Welcome to the Scientific Notation and Significant Figures MCQs with Answers. In this post, we are sharing Scientific Notation and Significant Figures Multiple Choice Questions and Answers in Everyday Science section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Scientific Notation and Significant Figures online MCQs Test.

What is the scientific notation for 4,5004,500?
A) 4.5×1034.5 \times 10^3
B) 4.50×1034.50 \times 10^3
C) 45×10245 \times 10^2
D) 4.5×1044.5 \times 10^4

Answer
A) 4.5×1034.5 times 10^3

How many significant figures are in the number 0.00780.0078?
A) 2
B) 3
C) 4
D) 5

Answer
A) 2

What is the result of multiplying 3.00×1023.00 times 10^2 and 4.0×1034.0 times 10^3, expressed in scientific notation with the correct number of significant figures?
A) 1.2×1061.2 \times 10^6
B) 1.2×1051.2 \times 10^5
C) 1.2×1071.2 \times 10^7
D) 1.20×1061.20 \times 10^6

Answer
A) 1.2×1061.2 times 10^6

Which of the following is the correct scientific notation for 0.0004560.000456?
A) 4.56×10−44.56 \times 10^{-4}
B) 4.56×10−34.56 \times 10^{-3}
C) 4.56×10−54.56 \times 10^{-5}
D) 4.56×10−64.56 \times 10^{-6}

Answer
A) 4.56×10−44.56 times 10^{-4}

How many significant figures are in the number 25002500 when expressed with no decimal point?
A) 2
B) 3
C) 4
D) 1

Answer
A) 2

What is the scientific notation for 0.000000890.00000089?
A) 8.9×10−78.9 \times 10^{-7}
B) 8.9×10−88.9 \times 10^{-8}
C) 8.90×10−78.90 \times 10^{-7}
D) 8.90×10−88.90 \times 10^{-8}

Answer
A) 8.9×10−78.9 times 10^{-7}

How many significant figures are in the number 500.0500.0?
A) 3
B) 4
C) 2
D) 5

Answer
B) 4

What is the result of dividing 7.80×1047.80 \times 10^4 by 3.0×1023.0 \times 10^2, expressed in scientific notation with the correct number of significant figures?
A) 2.6×1022.6 \times 10^2
B) 2.6×1012.6 \times 10^1
C) 2.60×1022.60 \times 10^2
D) 2.6×1032.6 \times 10^3

Answer
B) 2.6×1012.6 times 10^1

Which of the following has three significant figures?
A) 0.00250
B) 0.250
C) 2.50
D) 250

Answer
C) 2.50

What is the scientific notation for 5,000,0005,000,000?
A) 5.0×1065.0 \times 10^6
B) 5×1065 \times 10^6
C) 5.00×1065.00 \times 10^6
D) 0.5×1070.5 \times 10^7

Answer
B) 5×1065 times 10^6

How many significant figures are in the number 0.006700.00670?
A) 2
B) 3
C) 4
D) 5

Answer
B) 3

What is the result of adding 1.2341.234 and 0.0450.045, expressed with the correct number of significant figures?
A) 1.2791.279
B) 1.281.28
C) 1.31.3
D) 1.271.27

Answer
B) 1.281.28

What is the correct scientific notation for 0.00540.0054?
A) 5.4×10−35.4 \times 10^{-3}
B) 5.40×10−35.40 \times 10^{-3}
C) 5.4×10−45.4 \times 10^{-4}
D) 5.40×10−45.40 \times 10^{-4}

Answer
A) 5.4×10−35.4 times 10^{-3}

How many significant figures are in the number 120.00120.00?
A) 4
B) 5
C) 3
D) 2

Answer
B) 5

What is the scientific notation for 789,000789,000?
A) 7.89×1057.89 \times 10^5
B) 7.89×1047.89 \times 10^4
C) 78.9×10478.9 \times 10^4
D) 7.890×1057.890 \times 10^5

Answer
A) 7.89×1057.89 times 10^5

How many significant figures are in the number 1.0041.004?
A) 3
B) 4
C) 2
D) 5

Answer
B) 4

What is the correct scientific notation for 0.0001230.000123?
A) 1.23×10−41.23 \times 10^{-4}
B) 1.230×10−41.230 \times 10^{-4}
C) 1.23×10−51.23 \times 10^{-5}
D) 1.230×10−51.230 \times 10^{-5}

Answer
A) 1.23×10−41.23 times 10^{-4}

How many significant figures are in the number 33003300 when expressed with no decimal point?
A) 2
B) 3
C) 4
D) 5

Answer
A) 2

What is the scientific notation for 12,50012,500?
A) 1.25×1041.25 \times 10^4
B) 1.250×1041.250 \times 10^4
C) 12.5×10312.5 \times 10^3
D) 1.25×1051.25 \times 10^5

Answer
A) 1.25×1041.25 times 10^4

How many significant figures are in the number 0.0400.040?
A) 2
B) 3
C) 4
D) 5

Answer
A) 2

What is the result of subtracting 2.752.75 from 4.24.2, expressed with the correct number of significant figures?
A) 1.41.4
B) 1.451.45
C) 1.51.5
D) 1.501.50

Answer
A) 1.41.4

What is the scientific notation for 0.00000910.0000091?
A) 9.1×10−69.1 \times 10^{-6}
B) 9.10×10−69.10 \times 10^{-6}
C) 9.1×10−59.1 \times 10^{-5}
D) 9.10×10−59.10 \times 10^{-5}

Answer
A) 9.1×10−69.1 times 10^{-6}

How many significant figures are in the number 500.0500.0 when expressed with a decimal point?
A) 3
B) 4
C) 2
D) 5

Answer
B) 4

What is the scientific notation for 0.005600.00560?
A) 5.60×10−35.60 \times 10^{-3}
B) 5.6×10−35.6 \times 10^{-3}
C) 5.600×10−35.600 \times 10^{-3}
D) 5.60×10−45.60 \times 10^{-4}

Answer
A) 5.60×10−35.60 times 10^{-3}

How many significant figures are in the number 15,00015,000 when expressed with no decimal point?
A) 2
B) 3
C) 4
D) 5

Answer
A) 2

What is the scientific notation for 78,000,00078,000,000?
A) 7.8×1077.8 \times 10^7
B) 7.80×1077.80 \times 10^7
C) 78×10678 \times 10^6
D) 78.0×10678.0 \times 10^6

Answer
A) 7.8×1077.8 times 10^7

How many significant figures are in the number 0.00700.0070?
A) 2
B) 3
C) 4
D) 5

Answer
B) 2

What is the scientific notation for 0.0000007000.000000700?
A) 7.00×10−77.00 \times 10^{-7}
B) 7.0×10−77.0 \times 10^{-7}
C) 7.000×10−77.000 \times 10^{-7}
D) 7×10−77 \times 10^{-7}

Answer
A) 7.00×10−77.00 times 10^{-7}

How many significant figures are in the number 200.00200.00?
A) 3
B) 4
C) 5
D) 6

Answer
C) 5

What is the result of multiplying 6.76.7 by 0.0500.050, expressed with the correct number of significant figures?
A) 0.3350.335
B) 0.340.34
C) 0.330.33
D) 0.30.3

Answer
B) 0.340.34

What is the scientific notation for 0.0007890.000789?
A) 7.89×10−47.89 \times 10^{-4}
B) 7.9×10−47.9 \times 10^{-4}
C) 7.890×10−47.890 \times 10^{-4}
D) 78.9×10−578.9 \times 10^{-5}

Answer
A) 7.89×10−47.89 times 10^{-4}

How many significant figures are in the number 0.09000.0900?
A) 2
B) 3
C) 4
D) 5

Answer
C) 4

What is the result of dividing 5.6×1035.6 \times 10^3 by 4.0×1024.0 \times 10^2, expressed in scientific notation with the correct number of significant figures?
A) 1.4×1011.4 \times 10^1
B) 1.4×1021.4 \times 10^2
C) 1.40×1011.40 \times 10^1
D) 1.4×1001.4 \times 10^0

Answer
A) 1.4×1011.4 times 10^1

What is the scientific notation for 56,00056,000?
A) 5.6×1045.6 \times 10^4
B) 56×10356 \times 10^3
C) 5.60×1045.60 \times 10^4
D) 5.6×1035.6 \times 10^3

Answer
A) 5.6×1045.6 times 10^4

How many significant figures are in the number 70.070.0?
A) 2
B) 3
C) 4
D) 5

Answer
B) 3

What is the scientific notation for 0.0045000.004500?
A) 4.50×10−34.50 \times 10^{-3}
B) 4.5×10−34.5 \times 10^{-3}
C) 4.500×10−34.500 \times 10^{-3}
D) 4.50×10−44.50 \times 10^{-4}

Answer
A) 4.50×10−34.50 times 10^{-3}

How many significant figures are in the number 9.20×1029.20 \times 10^2?
A) 2
B) 3
C) 4
D) 5

Answer
B) 3

What is the scientific notation for 0.0000780.000078?
A) 7.8×10−57.8 \times 10^{-5}
B) 7.80×10−57.80 \times 10^{-5}
C) 0.78×10−40.78 \times 10^{-4}
D) 7.8×10−47.8 \times 10^{-4}

Answer
A) 7.8×10−57.8 times 10^{-5}

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