Quiz_1_091307_answer - 3.0 X 10-1 3. The spring in a spring...

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Physical Science 303 Quiz #1 , Sep. 13 2007 Name : 1. To measure the volume of a complicated container, water was poured from a calibrated cylinder until the container was full. The following results were obtained when the process was repeated several times. Fill the blanks below the table. (10pt) Data ( Litter ) Deviation 13.8 -0.06 14.2 0.34 13.6 -0.26 14.0 0.14 13.7 -0.16 Total 69.3 0.96 Average 13.86 0.192 Uncertainty 0.2 Result 13.9 ± 0.2 Relative Uncertainty 1 % 2. Below questions are about significant figures and their scientific notations. Fill the blanks. (10pt) Scientific Notations 23.4 has 3 significant figures. 2.34 X 10 1 90.675 has 5 significant figures. 9.0675 X 10 1 0.00875 has 3 significant figures. 8.75 X 10 -3 397.0 has 4 significant figures. 3.970 X 10 2 23.4 × 0.013 has 2 significant figures.
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Unformatted text preview: 3.0 X 10-1 3. The spring in a spring balance elongated by 2.4 cm when a weight of 3.9 N was hang on it. By how much would the spring elongate if a weight of 5.2 N were hanged from it? ( 8 pt ) (Use Hooks law) F = kx, k = 3.9 N / 2.4 cm = 1.625 N/cm x=F/k=5.2N/(1.625 N/cm) = 3.2 cm 4. Following data is to show the relationship between speed of a car and traveled distance. Assume the speed would be maintained at an initial value. (12 pts) time ( hour ) distance ( mile ) 1 70 2 140 3 210 4 280 5 350 a) Draw the graph (4pt) b) Find the proportional constant between time(x) and distance(y) (slope) (4pt). 70 mile/hour c) Express the relationship of time and distance in a mathematical formula (algebraic formula) (4pt). d= 70t...
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Quiz_1_091307_answer - 3.0 X 10-1 3. The spring in a spring...

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