Unit 1 Test Review

1. Unit 1 Test Review

2. Scientists use observations and data to form and test • Constants • Hypotheses • Theories • Conclusions Answer = B. Hypothesis

3. 2. During an experiment, which factors are observed and measured? a. dependent variables b. independent variables c. constants d. hypotheses Answer = A. dependent variables

4. 3. The work of scientists begins with a. testing a hypothesis b. asking a question c. creating experiments d. drawing conclusions Answer = B. Asking a question

5. 4. In science, a hypothesis is useful only if a. it predicts an outcome b. it can be tested c. both a and b d. none of the above Answer = C. both a and b

6. 5. This country standardized the measurement system a. England b. USA c. France d. Germany Answer = C. France

7. 6. The name of the standardized measurement system is a. SI b. Metric c. bot A and B d None of the above Answer = C. both A and B

8. 7. Converst the following measurement: 15g = _________kg Answer = .015 kg

9. Convert the following measurement: 1.76 DL = ______________ mL Answer = 17600 mL

10. 9. The amount of matter that makes up an object is it’s a. density b. mas c. volume d. weight Answer = B. Mass

11. 10. The amount of space that an object takes up is a. mass b. density c. volume d. weight Answer = C. Volume

12. 11. Calculate the density of a object with a mass of 10 and a volume of 2. a. 5 b. 0.2 c. 20 d. 8 Answer = A. 5

13. 12. Water displacement is a technique used to find what? a. Volume of a solid b. volume of an irregularly shaped oject c. mass of a solid d. mass of an irregularly shaped object Answer = B. Volume of an irregularly shaped object

14. 13. One would use this type of graph to show change over time a. scatter plot b. bar graph c. pie chart d. line graph Answer = D. line graph

15. 14. This type of graph shows percentages of parts of a whole a. bar graph b. pie chart c. scatter plot d. line graph Answer = B. pie chart

16. 15. What is the base unit of density a. grams b. meters c. g/mL d. g/m3 Answer = C. g/mL

17. 16. What is the line pointing to? a. stage adjustment knob b. diaphragm c. fine adjustment knob d. coarse adjustment knob ? Answer = C. fine adjustment knob

18. ? 17. What is the line pointing to? a. eyepiece b. objective lenses c. diaphragm d. arm Answer = A. eyepiece

19. 18. What is the line pointing to? a. light source b. objective lenses c. diaphragm d. stage adjustment knob ? Answer = C. diaphragm

20. 19. What is not one of the “BIG 6” measuremtents that are part of the SI system? a. Mass b. Length c. Weight d. Time Answer = c. weight

21. 20. What is the correct formula for writing hypothesis statements? If ____IV___ then ___DV___ because _____.

22. 21. Write the correct abbreviations or name for each: • Kilogram • Meter • hL • Mm • Cm • Gram • Millisecond Kg M Hectoliter Millimeter Centimeter G Ms