Name Stadent IIMNo. 12 December 2017 Multiple-Choice Question (2.0 points each)
ID: 697528 • Letter: N
Question
Name Stadent IIMNo. 12 December 2017 Multiple-Choice Question (2.0 points each) Circle or darken the letter that corresponds to the beest answer for each question answer.shset provided Calculators may NOT be shared 1. Which of the following is a measurement of mass in the metric system? A ounces Bgram C.meter D. centimeter E. pound Which of the following is a chemical change? A. cutting a rope E. melting gold 2. B. bending a steel rod C. burning wood D. making a snowman 3. Which of the following numbers contains the designated CORRECT number of significant figures? A. 0.05600 C. 616 000 E. 3.0650 5 significant figures 6 significant figures 5 significant figures B. 0.00302 5 significant figures D. 1.04 2 significant figures Which of the answers for the following conversions contains the correct sumber of significant figures? A 2.543 mx 394 in100.1942 in 4. 39.4 in. l m s 212 qt I L C. 24.95 min x-= 0.4158 hr 60 min D. 12.0 ft x-x 2.5cm - = 370 cm 1 in. E. 24.0kg x 1 lb 2.20 kg 5· The arithmetically correct answer with the proper decimal places fr 5.7 g + 2620 mg + 1.301 g + 4 g is A. 13.621 g. B. 14g C. 13 g D. 2631.001 g E. 11.0 g. 6. Which of the following is the smallest unit? A. micrometer B. millimeter C. meter. D. centimeter. E. kilometer. 7. Which of the following is an example of potential energy? B. riding an exercise bike E. water stored in a reservoir C. burning wood A. chewing food D. a fan blade tuning The specific heat of a substance is the amount of heat needed to A. change 1 g of the substance from the solid to the liquid state. B. raise the temperature of 1 g of the substance by i °C. C. change 1 g of the substance from the liquid to the solid state. D. convert 1 g of a liquid to gas 8. E. convert 1 g of a solid to a gas. The physical state(s) present when a substance is melting is (are) A. solid 9· B. liquid. C. gas D. solid+ liquid. E. liquid+ gas.Explanation / Answer
1. The measurement of mass in metric system is gram. So option is B.
2. Burning wood causes the chemical property of the wood to alter so, it is a chemical change. So, option is C.
3. Option is E as the number of digits after the decimal is 4 and one before the decimal is 1 and the significant figures is 5.
4. Option is B as the conversion as well as the number of significant digits is also correct.
5 Option A is the correct answer as the 13.621 IA arithmetically correct as well as good as the significant digits after the decimal is 3
6. Micrometer = 10-6m is the smallest unit here. Option A
7. Water stored in a reservoir E
8. Definition is given in B.
9. The substances when melting are solid and liquid.
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