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Extra Credit Due Tuesday, Jan. 5 SCIE 0900 Name _____________________________ Date _________________________ Select the correct term for the following questions: Leading 1. 2. Captive Trailing Non-zero What is the name (specifically) of the zeros contained between the nonzero digits in the following number: 2008? ________________________ What is the name (specifically) of the zeros between the decimal and the first significant digits in the following number: 0.000339? ________________________ 3. What is the name (specifically)of the digits in the following number: 2565 4. What is the name (specifically) of the zeros at the end of the following number: 32,000 ________________________ ________________________ Complete the table giving the proper number of sig figs and why Number of Describe why – what kind of zeros, whether significant figures there is a decimal or not, etc. 1. 180101 2. 1800.22 3. 180355 4. 0.1803 5. 0.01803 6. 0.18030 7. 0.00180300 8. 678.99 9. 3,450,010 10. 50,555 OVER Give the proper number of sig figs and round each number to 2 sig figs Number of Sig Figs 11. 0.00607000 12. 0.202237 13. 51,200.010 14. 150,777,000 15. 2690.330 16. 0.120099 17. 890.600768 18. 4,900.50 19. 0.6050 20. 10.80 21. 442 22. 40.63 23. 670.33 24. 0.0002566 25. 0.235000 Round to 2 Sig Figs Fill in the blanks – find answers in handouts and/or course manual. One word per blank. The ________ number portion of a decimal number are those digits to the ___________ of the decimal place. The decimal point helps us keep track of where the _________ place is. As we move right from the decimal point, each number place is ___________ by _______ (what number?). The number 14.504 is equal to 14.504000. Adding extra zeros to the right of a decimal ______ ______ change it’s value. However the numbers 145004 and 14500400 are not ________. In scientific measurements all the digits known with ________________, plus one _______________ digit are known as significant __________________. There will always be some _____________________ in measurements because of the limits of the accuracy of your measuring _____________________. We always want to strive for measurements that are accurate and ___________________.