Ch1 test - Chapter 1 test PDF

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Chapter 1 test...

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1. Compare the density of ice to the density of water. The density of the ice is: a. the same b. greater c. less than

2. A good way to improve communications and understand relationships involved in nature is to: a. ask a lot of questions as you speak observations aloud several times b. write a detailed description of everything observed c. memorize all the equations in your text d. make measurements of objects and events

3. Which of the following statements is most correct? a. Science has all the answers b. Science is absolutely always right c. Science seeks to understand nature d. Nonscientific study has little value

4. Equations are used to: a. define a concept b. describe a property c. all of these d. describe how quantities change together

5. Which of the following is not a SI unit of the property it measures? a. mass - kilogram b. time - second c. length - meter d. volume – ounce

6. The ancient Greek natural philosophers are different from scientists of today because their understanding about nature came from: a. experiments that were not controlled b. thinking only c. the writing of earlier generations d. controlled experiments

7. When something cannot be directly observed, it can be represented by a: a. theory b. graph c. model d. hypothesis

8. The property of volume is a measure of: a. the extent of the surface of the object b. how much matter the object contains c. how much space the object occupies d. the compactness of matter in a given space

9. A tentative scientific explanation which may or may not be rejected upon further experimentation is called a: a. hypothesis b. model c. theory d. principle

10. One of the basic differences between science and a pseudoscience is the lack of: a. data b. theories c. valid and reliable experimental studies d. testable hypothesis

11. A tentative thought or experiment derived explanation is known as a: a. hypothesis b. model c. scientific law d. scientific theory

12. An event with two situations that has all the influencing factors identical except one is a: a. experiment b. controlled experiment c. impossible experiment d. hypothetical experiment

13. An experimental situation used as the basis of comparison is the: a. experimental group b. hypothetical group c. group of variables where changes will occur. d. control group

14. Measured properties that have different values at different times are: a. called scientific flukes b. impossible c. the results of measurement errors d. called variables

15. When two variables increase together by the same ratio, they: a. are in direct proportion b. are in inverse proportion c. can have numerical value only d. must have both value and unit

16. Measurement is the process of comparing a ________________ to a well defined _____________. a. result; variable b. property; referent c. unit; referent d. finding; result

17. Which of the following is not a fundamental property: a. time b. weight c. mass d. length

18. The property of area is a measure of: a. how much matter the object contains b. how much space the object occupies c. the extent of the surface of the object d. the compactness of matter in a given space

19. The SI standard unit for mass is the: a. newton b. mole c. kilogram d. pound

20. The metric prefix that means one-hundredth is: a. centi b. deci c. milli d. kilo

21. The metric prefix that means one thousand is: a. milli b. deci c. kilo d. centi

22. Measurement information used to describe something is called: a. data b. a unit c. a referent d. a value

23. A fundamental property cannot be measured: a. with both accuracy and precision b. in terms other than metric units c. in terms other than English units d. in simpler terms

24. If an experiment gives the same result repeatedly, scientists describe the result as: a. valid b. controlled c. experimental d. reliable

25. Which of the following could be used by scientists to visualize or understand something that cannot be observed directly: a. the theory of plate tectonics b. Newton's laws of motion c. Archimedes' Principle d. a model of the Solar System

26. Which of the following is NOT a physical property that a scientist might use to describe gold? a. valuable b. dense c. shiny metallic luster d. yellowish color

27. Pseudoscience refers to: a. data collected in the field without adequate laboratory controls b. the use of selected pieces of scientific information to mislead or confuse c. measurements made using the English system of measure rather than the metric system d. experiments conducted by computer simulation

28. The metric system uses prefixes to represent larger or smaller amounts based on the number: a. 100 b. 1000 c. 0.1 d. 10

29. Which of the following is not a standard unit: a. second b. meter c. kilogram d. Newton

30. A generalized mental image of a material object is a: a. mental picture b. definition c. impression d. concept

31. An example of an intangible concept is: a. agenda b. time c. calendar d. almanac

32. If you wanted to describe an object, you could make a list of its: a. assets b. properties c. meaning d. values

33. The system of measurement based on referents in nature, but not with respect to human body parts, is the: a. English system b. metric system c. Absolute system

34. The ratio of mass per volume of a substance is called its: a. mass-volume b. density c. weight

35. An equation describes a relationship where: a. the units on both sides are equal, but not the numbers. b. the numbers on both sides are equal, but not the units c. the numbers and units on both sides are proportional, but not equal d. the numbers and units on both sides are equal

36. If one variable increases in value while a second, related variable decreases in value, the relationship is said to be: a. inverse square b. inverse c. direct d. square

37. What is needed to change a proportionality statement into an equation? a. add numbers to one side to make both sides equal b. divide by unknown to move symbol to left side of equal symbol c. include a proportionality constant d. add units to one side to make units equal

38. A referent is a familiar object one can use to describe the property of an object. a. True b. False

39. Measurement information used to describe something is called data. a. True b. False

40. The density of a 100 g piece of iron is twice as great as the density of a 50 g piece of iron. a. True b. False...