Scientific Notation and Significant Figures MCQs with Answers

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 $4,500$?
A) 4.5×1034.5 \times 10^34.5×103
B) 4.50×1034.50 \times 10^34.50×103
C) 45×10245 \times 10^245×102
D) 4.5×1044.5 \times 10^44.5×104

How many significant figures are in the number $0.0078$?
A) 2
B) 3
C) 4
D) 5

What is the result of multiplying 3.00×1023.00 times 10^23.00×102 and 4.0×1034.0 times 10^34.0×103, expressed in scientific notation with the correct number of significant figures?
A) 1.2×1061.2 \times 10^61.2×106
B) 1.2×1051.2 \times 10^51.2×105
C) 1.2×1071.2 \times 10^71.2×107
D) 1.20×1061.20 \times 10^61.20×106

Which of the following is the correct scientific notation for $0.000456$?
A) 4.56×10−44.56 \times 10^{-4}4.56×10−4
B) 4.56×10−34.56 \times 10^{-3}4.56×10−3
C) 4.56×10−54.56 \times 10^{-5}4.56×10−5
D) 4.56×10−64.56 \times 10^{-6}4.56×10−6

How many significant figures are in the number $2500$ when expressed with no decimal point?
A) 2
B) 3
C) 4
D) 1

What is the scientific notation for $0.00000089$?
A) 8.9×10−78.9 \times 10^{-7}8.9×10−7
B) 8.9×10−88.9 \times 10^{-8}8.9×10−8
C) 8.90×10−78.90 \times 10^{-7}8.90×10−7
D) 8.90×10−88.90 \times 10^{-8}8.90×10−8

How many significant figures are in the number $500.0$?
A) 3
B) 4
C) 2
D) 5

What is the result of dividing 7.80×1047.80 \times 10^47.80×104 by 3.0×1023.0 \times 10^23.0×102, expressed in scientific notation with the correct number of significant figures?
A) 2.6×1022.6 \times 10^22.6×102
B) 2.6×1012.6 \times 10^12.6×101
C) 2.60×1022.60 \times 10^22.60×102
D) 2.6×1032.6 \times 10^32.6×103

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

What is the scientific notation for $5,000,000$?
A) 5.0×1065.0 \times 10^65.0×106
B) 5×1065 \times 10^65×106
C) 5.00×1065.00 \times 10^65.00×106
D) 0.5×1070.5 \times 10^70.5×107

How many significant figures are in the number $0.00670$?
A) 2
B) 3
C) 4
D) 5

What is the result of adding $1.234$ and $0.045$, expressed with the correct number of significant figures?
A) $1.279$
B) $1.28$
C) $1.3$
D) $1.27$

What is the correct scientific notation for $0.0054$?
A) 5.4×10−35.4 \times 10^{-3}5.4×10−3
B) 5.40×10−35.40 \times 10^{-3}5.40×10−3
C) 5.4×10−45.4 \times 10^{-4}5.4×10−4
D) 5.40×10−45.40 \times 10^{-4}5.40×10−4

How many significant figures are in the number $120.00$?
A) 4
B) 5
C) 3
D) 2

What is the scientific notation for $789,000$?
A) 7.89×1057.89 \times 10^57.89×105
B) 7.89×1047.89 \times 10^47.89×104
C) 78.9×10478.9 \times 10^478.9×104
D) 7.890×1057.890 \times 10^57.890×105

How many significant figures are in the number $1.004$?
A) 3
B) 4
C) 2
D) 5

What is the correct scientific notation for $0.000123$?
A) 1.23×10−41.23 \times 10^{-4}1.23×10−4
B) 1.230×10−41.230 \times 10^{-4}1.230×10−4
C) 1.23×10−51.23 \times 10^{-5}1.23×10−5
D) 1.230×10−51.230 \times 10^{-5}1.230×10−5

How many significant figures are in the number $3300$ when expressed with no decimal point?
A) 2
B) 3
C) 4
D) 5

What is the scientific notation for $12,500$?
A) 1.25×1041.25 \times 10^41.25×104
B) 1.250×1041.250 \times 10^41.250×104
C) 12.5×10312.5 \times 10^312.5×103
D) 1.25×1051.25 \times 10^51.25×105

How many significant figures are in the number $0.040$?
A) 2
B) 3
C) 4
D) 5

What is the result of subtracting $2.75$ from $4.2$, expressed with the correct number of significant figures?
A) $1.4$
B) $1.45$
C) $1.5$
D) $1.50$

What is the scientific notation for $0.0000091$?
A) 9.1×10−69.1 \times 10^{-6}9.1×10−6
B) 9.10×10−69.10 \times 10^{-6}9.10×10−6
C) 9.1×10−59.1 \times 10^{-5}9.1×10−5
D) 9.10×10−59.10 \times 10^{-5}9.10×10−5

How many significant figures are in the number $500.0$ when expressed with a decimal point?
A) 3
B) 4
C) 2
D) 5

What is the scientific notation for $0.00560$?
A) 5.60×10−35.60 \times 10^{-3}5.60×10−3
B) 5.6×10−35.6 \times 10^{-3}5.6×10−3
C) 5.600×10−35.600 \times 10^{-3}5.600×10−3
D) 5.60×10−45.60 \times 10^{-4}5.60×10−4

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

What is the scientific notation for $78,000,000$?
A) 7.8×1077.8 \times 10^77.8×107
B) 7.80×1077.80 \times 10^77.80×107
C) 78×10678 \times 10^678×106
D) 78.0×10678.0 \times 10^678.0×106

How many significant figures are in the number $0.0070$?
A) 2
B) 3
C) 4
D) 5

What is the scientific notation for $0.000000700$?
A) 7.00×10−77.00 \times 10^{-7}7.00×10−7
B) 7.0×10−77.0 \times 10^{-7}7.0×10−7
C) 7.000×10−77.000 \times 10^{-7}7.000×10−7
D) 7×10−77 \times 10^{-7}7×10−7

How many significant figures are in the number $200.00$?
A) 3
B) 4
C) 5
D) 6

What is the result of multiplying $6.7$ by $0.050$, expressed with the correct number of significant figures?
A) $0.335$
B) $0.34$
C) $0.33$
D) $0.3$

What is the scientific notation for $0.000789$?
A) 7.89×10−47.89 \times 10^{-4}7.89×10−4
B) 7.9×10−47.9 \times 10^{-4}7.9×10−4
C) 7.890×10−47.890 \times 10^{-4}7.890×10−4
D) 78.9×10−578.9 \times 10^{-5}78.9×10−5

How many significant figures are in the number $0.0900$?
A) 2
B) 3
C) 4
D) 5

What is the result of dividing 5.6×1035.6 \times 10^35.6×103 by 4.0×1024.0 \times 10^24.0×102, expressed in scientific notation with the correct number of significant figures?
A) 1.4×1011.4 \times 10^11.4×101
B) 1.4×1021.4 \times 10^21.4×102
C) 1.40×1011.40 \times 10^11.40×101
D) 1.4×1001.4 \times 10^01.4×100

What is the scientific notation for $56,000$?
A) 5.6×1045.6 \times 10^45.6×104
B) 56×10356 \times 10^356×103
C) 5.60×1045.60 \times 10^45.60×104
D) 5.6×1035.6 \times 10^35.6×103

How many significant figures are in the number $70.0$?
A) 2
B) 3
C) 4
D) 5

What is the scientific notation for $0.004500$?
A) 4.50×10−34.50 \times 10^{-3}4.50×10−3
B) 4.5×10−34.5 \times 10^{-3}4.5×10−3
C) 4.500×10−34.500 \times 10^{-3}4.500×10−3
D) 4.50×10−44.50 \times 10^{-4}4.50×10−4

How many significant figures are in the number 9.20×1029.20 \times 10^29.20×102?
A) 2
B) 3
C) 4
D) 5

What is the scientific notation for $0.000078$?
A) 7.8×10−57.8 \times 10^{-5}7.8×10−5
B) 7.80×10−57.80 \times 10^{-5}7.80×10−5
C) 0.78×10−40.78 \times 10^{-4}0.78×10−4
D) 7.8×10−47.8 \times 10^{-4}7.8×10−4

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