2. significant figures worksheet\nidentify the number of significant figures\n1) 3.0800 kg\n2) 0.00418 m\n3)…

2. significant figures worksheet\nidentify the number of significant figures\n1) 3.0800 kg\n2) 0.00418 m\n3) 7.09×10⁻³ l\n4) 91,600 miles\n5) 0.003005 g\n6) 38 eggs\n7) 3.200×10⁹ s\n8) 250 °c\n9) 780,000,000 km\n10) 20 years in one score\n11) 0.0101 ml\n12) 0.00800 cm\n13) 20,700 inches\n14) 5.0002×10⁸ calories

2. significant figures worksheet\nidentify the number of significant figures\n1) 3.0800 kg\n2) 0.00418 m\n3) 7.09×10⁻³ l\n4) 91,600 miles\n5) 0.003005 g\n6) 38 eggs\n7) 3.200×10⁹ s\n8) 250 °c\n9) 780,000,000 km\n10) 20 years in one score\n11) 0.0101 ml\n12) 0.00800 cm\n13) 20,700 inches\n14) 5.0002×10⁸ calories

Answer

Explanation:

Step1: Recall significant - figure rules

Non - zero digits are always significant. Zeros between non - zero digits are significant. Leading zeros (zeros before non - zero digits) are not significant. Trailing zeros in a number with a decimal point are significant. Trailing zeros in a whole number without a decimal point may or may not be significant (scientific notation can clarify).

Step2: Analyze 1.0800 kg

Non - zero digits 1 and 8 are significant. Zeros between 1 and 8 and trailing zeros after 8 are significant. So, there are 5 significant figures.

Step3: Analyze 0.00418 m

Leading zeros are not significant. Non - zero digits 4, 1, and 8 are significant. So, there are 3 significant figures.

Step4: Analyze 7.09×10⁻³ L

Non - zero digits 7 and 9 and zero between them are significant. So, there are 3 significant figures.

Step5: Analyze 91.600 miles

Non - zero digits 9, 1, and 6 are significant. Trailing zeros after 6 are significant. So, there are 5 significant figures.

Step6: Analyze 0.003005 g

Leading zeros are not significant. Non - zero digits 3 and 5 and zeros between them are significant. So, there are 4 significant figures.

Step7: Analyze 38 eggs

Non - zero digits 3 and 8 are significant. So, there are 2 significant figures.

Step8: Analyze 3.200×10⁹ s

Non - zero digits 3 and 2 and trailing zeros after 2 are significant. So, there are 4 significant figures.

Step9: Analyze 250 °C

Trailing zero may or may not be significant. Without more context, if written as is, there are 2 significant figures.

Step10: Analyze 780,000,000 km

Trailing zeros may or may not be significant. In scientific notation, it could be clarified. As written, if no other context, 2 significant figures.

Step11: Analyze 20 years in one score

Exact numbers like this have infinite significant figures. But if considering it as a measured value in a context where precision matters, 2 significant figures.

Step12: Analyze 0.0101 mL

Leading zero before 1 is not significant. Non - zero digits 1 and 1 and zero between them are significant. So, there are 3 significant figures.

Step13: Analyze 0.00800 cm

Leading zeros are not significant. Non - zero digit 8 and trailing zeros after 8 are significant. So, there are 3 significant figures.

Step14: Analyze 20,700 inches

Trailing zeros may or may not be significant. Non - zero digits 2 and 7 are significant. If no other context, 3 significant figures.

Step15: Analyze 5.0002×10⁸ calories

Non - zero digits 5 and 2 and zeros between them are significant. So, there are 5 significant figures.

Answer:

  1. 5
  2. 3
  3. 3
  4. 5
  5. 4
  6. 2
  7. 4
  8. 2
  9. 2
  10. 2
  11. 3
  12. 3
  13. 3
  14. 5