Significant figures are digits in a number that carry meaning regarding the precision of a measurement. Mastery of significant figures ensures accurate representation and reporting of measured quantities. These multiple-choice questions will assess your comprehension of significant figures and their application in calculations.

- What is the correct number of significant figures in the measurement 0.00350 m?

A) 2

B) 3

C) 4

D) 5**Correct Option: C****Explanation:**The zeros before the first non-zero digit are not significant. Therefore, only the digits 3, 5, and 0 after the decimal point are significant, giving us 3 significant figures. - How many significant figures are there in the number 6004?

A) 2

B) 3

C) 4

D) 5**Correct Option: 4****Explanation:**All non-zero digits are significant, so all four digits in 6004 are significant. - Which of the following is an example of a measured quantity?

A) 100 cm

B) 1 dozen

C) 60 minutes

D) 5 people**Correct Option: A****Explanation:**Measured quantities are those obtained through measurement instruments like rulers, meters, etc. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**When multiplying numbers in scientific notation, multiply the coefficients and add the exponents. - How many significant figures are there in the measurement 40.00 g?

A) 2

B) 3

C) 4

D) 5**Correct Option: D****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 40.00 g has 4 significant figures. - What is the correct result of the calculation ?

A)

B)

C)

D)**Correct Option: D****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following is not a rule for determining significant figures?

A) Non-zero digits are always significant.

B) Zeros between significant figures are significant.

C) Leading zeros are never significant.

D) Trailing zeros after a decimal point are always significant.**Correct Option: D****Explanation:**Trailing zeros after a decimal point are significant, but trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - Which of the following measurements has the fewest significant figures?

A) 0.0054 cm

B) 54.00 cm

C) 5400 cm

D) 0.540 cm**Correct Option: D****Explanation:**The measurement with the fewest non-zero digits has the fewest significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: D****Explanation:**Multiply the coefficients and add the exponents. - How many significant figures are there in the measurement 0.004506 kg?

A) 3

B) 4

C) 5

D) 6**Correct Option: 4****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 0.004506 kg has 4 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - Which of the following numbers has the least number of significant figures?

A) 40

B) 0.0040

C) 40.00

D) 4000**Correct Option: A****Explanation:**40 has only one significant figure, whereas the others have more. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Multiply the coefficients and add the exponents. - How many significant figures are there in the number 0.0040200 m?

A) 3

B) 4

C) 5

D) 6**Correct Option: 5****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 0.0040200 m has 5 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 0.03050

B) 20.405

C) 300

D) 0.007**Correct Option: B****Explanation:**20.405 has five significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 5040 kg?

A) 2

B) 3

C) 4

D) 5**Correct Option: 3****Explanation:**All non-zero digits are significant, so 5040 kg has 3 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 400

B) 400.0

C) 4.00

D) 40.00**Correct Option: A****Explanation:**400 has only one significant figure, whereas the others have more. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - How many significant figures are there in the number 400.000?

A) 2

B) 3

C) 4

D) 6**Correct Option: 6****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 400.000 has 6 significant figures. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - Which of the following measurements has the fewest significant figures?

A) 0.00508 cm

B) 5.008 cm

C) 50.08 cm

D) 500.8 cm**Correct Option: B****Explanation:**The measurement with the fewest non-zero digits has the fewest significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - How many significant figures are there in the measurement 0.007040 m?

A) 3

B) 4

C) 5

D) 6**Correct Option: 4****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 0.007040 m has 4 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the most significant figures?

A) 70

B) 0.0070

C) 70.00

D) 7000**Correct Option: C****Explanation:**70.00 has four significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 3.0007 m?

A) 3

B) 4

C) 5

D) 6**Correct Option: 5****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 3.0007 m has 5 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.0040

B) 40.0

C) 4.000

D) 400**Correct Option: A****Explanation:**0.0040 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 7000 s?

A) 2

B) 3

C) 4

D) 5**Correct Option: 1****Explanation:**The measurement 7000 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the most significant figures?

A) 70

B) 700

C) 0.07

D) 0.007**Correct Option: B****Explanation:**700 has three significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 0.00400 m?

A) 2

B) 3

C) 4

D) 5**Correct Option: 3****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 0.00400 m has 3 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.00300

B) 0.000300

C) 0.0000300

D) 0.00000300**Correct Option: D****Explanation:**0.00000300 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 0.0060500 kg?

A) 2

B) 3

C) 4

D) 5**Correct Option: 5****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 0.0060500 kg has 5 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 20.020

B) 200

C) 0.0020020

D) 2000**Correct Option: A****Explanation:**20.020 has five significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 3000 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 3000 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 0.00205

B) 0.0205

C) 0.205

D) 2.05**Correct Option: C****Explanation:**0.205 has three significant figures, fewer than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 5.0000 m?

A) 2

B) 3

C) 4

D) 6**Correct Option: 6****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 5.0000 m has 6 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.0040

B) 0.040

C) 0.400

D) 4.00**Correct Option: D****Explanation:**4.00 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 0.00800600 kg?

A) 3

B) 4

C) 5

D) 6**Correct Option: 6****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 0.00800600 kg has 6 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 6000

B) 6000.0

C) 6.0000

D) 0.00060000**Correct Option: D****Explanation:**0.00060000 has eight significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 2000 m?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 2000 m has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 0.002

B) 0.020

C) 0.200

D) 2.00**Correct Option: A****Explanation:**0.002 has one significant figure, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 800 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 800 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.3000

B) 3.000

C) 30.00

D) 3000**Correct Option: A****Explanation:**0.3000 has two significant figures, fewer than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 4.00060 m?

A) 2

B) 3

C) 4

D) 6**Correct Option: 6****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 4.00060 m has 6 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 5.00005

B) 5.0005

C) 5.005

D) 5.05**Correct Option: A****Explanation:**5.00005 has six significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 5000 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 5000 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 0.0025

B) 0.025

C) 0.25

D) 2.5**Correct Option: D****Explanation:**2.5 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 600 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 600 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.000400

B) 0.00400

C) 0.0400

D) 0.4000**Correct Option: D****Explanation:**0.4000 has three significant figures, fewer than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 4.000060 m?

A) 2

B) 3

C) 4

D) 6**Correct Option: 7****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 4.000060 m has 7 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 0.00305

B) 0.0305

C) 0.305

D) 3.05**Correct Option: A****Explanation:**0.00305 has three significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 5000 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 5000 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 0.0025

B) 0.025

C) 0.25

D) 2.5**Correct Option: D****Explanation:**2.5 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 600 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 600 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.000400

B) 0.00400

C) 0.0400

D) 0.4000**Correct Option: D****Explanation:**0.4000 has three significant figures, fewer than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 4.000060 m?

A) 2

B) 3

C) 4

D) 6**Correct Option: 7****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 4.000060 m has 7 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 0.00305

B) 0.0305

C) 0.305

D) 3.05**Correct Option: A****Explanation:**0.00305 has three significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 5000 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 5000 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 0.0025

B) 0.025

C) 0.25

D) 2.5**Correct Option: D****Explanation:**2.5 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the measurement 600 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 600 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Subtract the coefficients and keep the same exponent. - Which of the following numbers has the least number of significant figures?

A) 0.000400

B) 0.00400

C) 0.0400

D) 0.4000**Correct Option: D****Explanation:**0.4000 has three significant figures, fewer than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 4.000060 m?

A) 2

B) 3

C) 4

D) 6**Correct Option: 7****Explanation:**All non-zero digits and zeros between significant figures are significant. Therefore, 4.000060 m has 7 significant figures. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Add the coefficients and keep the same exponent. - Which of the following numbers has the most significant figures?

A) 0.00305

B) 0.0305

C) 0.305

D) 3.05**Correct Option: A****Explanation:**0.00305 has three significant figures, more than the other options. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: B****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator. - How many significant figures are there in the number 5000 s?

A) 1

B) 2

C) 3

D) 4**Correct Option: 1****Explanation:**The measurement 5000 s has only one significant figure since trailing zeros in whole numbers may or may not be significant depending on whether a decimal point is specified. - What is the result of the calculation ?

A)

B)

C)

D)**Correct Option: C****Explanation:**Multiply the coefficients and add the exponents. - Which of the following numbers has the least number of significant figures?

A) 0.0025

B) 0.025

C) 0.25

D) 2.5**Correct Option: D****Explanation:**2.5 has two significant figures, fewer than the other options. - What is the result of the expression ?

A)

B)

C)

D)**Correct Option: A****Explanation:**Divide the coefficients and subtract the exponent of the denominator from the exponent of the numerator.

## Chapter 1 Physical Quantities Topic-wise MCQs

Topic |
---|

Based Quantities & Derived Quantities MCQs |

International System of Units MCQs |

Prefixes MCQs |

Scientific Notation MCQs |

Measuring Instruments MCQs |

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