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Science Experiment Data Practice Test

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Review the following concepts if needed:

Science Experiment Data Practice Test

1. Chemistry is known as

(a) an attraction between two people

(b) an exact science

(c) an experimental science

(d) a method to describe units of heat

2. In 1670, Gabriel Mouton suggested

(a) a law of partial pressures

(b) the boiling point of alcohol

(c) the Sun as the center of the universe

(d) a decimal system of measurement

3. The International System of Units (SI) has how many base units?

(a) 4

(b) 6

(c) 7

(d) 9

4. Exponential or scientific notation is

(a) a method where numbers are written in powers of 10

(b) a shorthand method of number accounting

(c) a way to write very large and very small numbers

(d) all of the above

5. The number of digits recorded in a measurement is

(a) always whole numbers

(b) significant digits or figures

(c) a way to count on your fingers

(d) the method of including all zeros

6. Precision is described as

(a) more accurate than excision

(b) less accurate than two significant digits

(c) the closeness of two sets of measured groups of values

(d) the equal spacing of numbers around a common number

7. Accuracy is described as

(a) more precise than two significant digits

(b) the closeness of two sets of measured groups of values

(c) only applicable to experimental measurements

(d) the closeness of a single measurement to its true value

8. Rounding is used primarily to

(a) sum up significant figures

(b) drop non-significant digits in a calculation

(c) drop digits greater than 5

(d) increase all numbers to the most certain number

9. Conversion factors make use of

(a) a relationship between two units or quantities in fractional form

(b) the fact that units are always written as whole numbers

(c) numbers which cannot be divided into smaller units

(d) a direct connection between weight and volume

10. Which of the units below is an example of SI derived units?

(a) cm/m

(b) m/s 2

(c) m/kg 2

(d) m/ft 2

1. C

2. D

3. C

4. A

5. B

6. C

7. D

8. B

9. A

10. B

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