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Laws of Indices and Number Systems

# Laws of Indices and Number Systems - 10 A 2 B 20 C 100 D...

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Laws of Indices and Number Systems Form 2 Section A Multiple Choice Questions Simplify ( x 3 y –1 ) –4 ( x 2 y –5 ) A. B. C. D. 6( x 3 y –2 ) –1 ÷ (2 x –1 y 2 ) –1 A. B. C. D. 1. Simplify B. C. D. = A. B. C. D. 2. = B. C. D. Which of the following numbers is represented in scientific notation? A. 0.5 × 10 6 B. 5.0 × 10 –3 C. 5 × 100 4 D. 50 × 10 –5 3. Express 0.0950 × 10 –12 in scientific notation. A. 9.5 × 10 –14 B. 9.50 × 10 –14 C. 9.5 × 10 –10 D. 9.50 × 10 –10 1

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4. It is given that 1 micro-meter ( μ m) = 10 –6 m. Express 0.27 km as micro-meter in scientific notation. A. 2.7 × 10 5 μ m B. 2.7 × 10 7 μ m C. 2.7 × 10 8 μ m D. 2.7 × 10 9 μ m 5. In astronomy, one light-year is the distance travelled by light in on3 year. If the speed of light is 3 × 10 8 m/s, express one light-year in scientific notation. A. 1.5768 × 10 14 m B. 3.942 × 10 14 m 9.4608 × 10 15 m C. 6..6226 × 10 16 m State the place value of “2” in 30284

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Unformatted text preview: 10 . A. 2 B. 20 C. 100 D. 200 Section B Long Questions 6. Express 2046 10 in expanded form 7. 3 × 10 2 + 0 × 10 + 8 × 10 3 + 5 × 10 4 8. State the place value of “0” in 111101 2 . 9. Convert 100101 2 into a denary number 10. Convert 105 10 into a binary number 2 11. Express BC0E 16 in expanded form 12. Find the hexadecimal number whose expanded form is 10 × 16 3 + 7 × 16 + 15 × 16 2 13. Convert 2AB 16 to a denary number 14. Convert 782 10 to a hexadecimal number. 15. Convert 1101100 2 to a hexadecimal number. 3 16. Convert 56 10 to a binary number. 17. Find the binary number whose expanded form is 1 × 2 6 + 1 × 2 3 + 2 4...
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