Scientific Notation, Error & Logarithmic Scales (Grade 9)
Free printable Grade 9 measurement worksheet: scientific notation, percentage error, and logarithmic scales.
✓ Answer key checked by math, never wrong
Grade 9 · Math worksheet
Name
Date
Math
Measurement: Scientific Notation, Error & Logarithmic Scales
Convert between standard and scientific notation, simplify the product, find the percentage error, or answer the question about logarithmic scales.
- 1.Write 440,000,000 in scientific notation.
- 2.Write 56,000,000 in scientific notation.
- 3.Write 12,000,000 in scientific notation.
- 4.Write 270,000 in scientific notation.
- 5.Write 3.9 x 10^6 as a standard (ordinary) number.
- 6.Write 1.3 x 10^7 as a standard (ordinary) number.
- 7.Write 7.8 x 10^3 as a standard (ordinary) number.
- 8.Simplify: (3 x 10^4) x (4 x 10^3)
- 9.Simplify: (5 x 10^5) x (9 x 10^2)
- 10.Simplify: (5 x 10^2) x (9 x 10^2)
- 11.A length is measured as 163 cm, but the true length is 151 cm. Find the percentage error, rounded to 1 decimal place.
- 12.A length is measured as 190 cm, but the true length is 189 cm. Find the percentage error, rounded to 1 decimal place.
- 13.A length is measured as 101 cm, but the true length is 95 cm. Find the percentage error, rounded to 1 decimal place.
- 14.A length is measured as 87 cm, but the true length is 80 cm. Find the percentage error, rounded to 1 decimal place.
- 15.A length is measured as 137 cm, but the true length is 129 cm. Find the percentage error, rounded to 1 decimal place.
- 16.The Richter scale for earthquakes is logarithmic. If an earthquake measures 6, roughly how many times stronger is it than one measuring 5?
- 17.Why do scientists use a logarithmic scale, like the Richter or decibel scale, instead of a normal linear scale?
- 18.The pH scale is logarithmic. A solution with pH 4 is how many times more acidic than one with pH 6?
Made with ChalkBee · chalkbee.com