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Chemistry Ch 3 review measurement

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

The scale of a measuring instrument is __________, or accurately subdivided into measurement units.

a)

standardized

b)

unitized

c)

graduated

d)

enumerated

2.

What is the only SI base unit that is still defined by a man-made object?

a)

meter

b)

kilogram

c)

kelvin

d)

mole

e)

none are

3.

Units of measurement that come from basic SI units are called __________ units.

a)

integrated

b)

graduated

c)

scalar

d)

derived

4.

The SI base unit for temperature is the __________.

a)

Fahrenheit

b)

Celsius

c)

kelvin

d)

rankin

5.

Which of these SI units would measure the volume of a substance?

a)

square meter

b)

square kilogram

c)

cubic meter

d)

cubic kilogram

6.

The smaller the percent error of a measurement is, the more __________ the measurement is.

a)

precise

b)

accurate

c)

significant

d)

metric

7.

You measure the products of a chemical reaction three times and get 6.15 g, 6.16 g, and 6.13 g. The actual mass is 6.14 g. Your measurements are

a)

accurate but not precise.

b)

precise but not accurate..

c)

both accurate and precise.

d)

neither accurate nor precise.

8.

Significant digits apply only to __________ data.

a)

pure

b)

counted

c)

measured

d)

defined

9.

The measurement 0.037 010 m has how many significant digits?

a)

6

b)

5

c)

3

d)

4

10.

Which of these is not a common step in problem solving?

a)

estimating

b)

calculating

c)

checking

d)

graduating

11.

In measurement, only like units can be added or subtracted.

a)

true

b)

false

12.

It is improper to multiply two measurements that have different units.

a)

true

b)

false

13.

A measurement is made of two essential parts: a number and a unit of measurement.

a)

true

b)

false

14.

unit for volume is derived from the SI unit for length, the meter.

a)

true

b)

false

15.

If a scientist is extremely careful and uses precise instruments, a perfect measurement can be obtained.

a)

true

b)

false

16.

The number 0.00800 has three significant digits.

a)

true

b)

false

17.

Match the definition with the correct prefix: mega-

a)

hundredth

b)

million

c)

tenth

d)

billionth

e)

thousand

18.

deci-

a)

hundredth

b)

million

c)

tenth

d)

billionth

e)

thousand

19.

nano-

a)

hundredth

b)

million

c)

tenth

d)

billionth

e)

thousand

20.

centi-

a)

hundredth

b)

million

c)

tenth

d)

billionth

e)

thousand

21.

kilo-

a)

hundredth

b)

million

c)

tenth

d)

billionth

e)

thousand

22.

If a lab experiment is not completed, you should

a)

discuss the issue with your instructor.

b)

sneak in after school and work alone.

c)

come in during lunch and finish while eating lunch.

d)

make up some results.

23.

You are heating a piece of glass and now want to pick it

up. You should

a)

use a rag or paper towels.

b)

pick up the end that looks cooler.

c)

use tongs.

d)

pour cold water on it.

24.

When gathering glassware and equipment for an

experiment, you should

a)

read all directions carefully to know what equipment is necessary.

b)

examine all glassware to check for chips or cracks.

c)

clean any glassware that appears dirty.

d)

All of the above

25.

If an acid is splashed on your skin, wash at once with

a)

soap.

b)

. oil.

c)

weak base.

d)

plenty of water.

26.

Return all unused chemicals to their original containers.

a)

true

b)

false

27.

What is the value of 50 cm in dkm units?

a)

500 dkm

b)

5 dkm

c)

.5 dkm

d)

.05 dkm

28.

What is the value of 880 hm in mm?

a)

88,000 mm

b)

8800 mm

c)

88,000,000 mmm

d)

88 mm

29.

What is the value of 20 cm in m?

a)

.2

b)

.002

c)

.0002.

d)

.00002

30.

What is the volume of the box?

a)

6 m3

b)

9 m3

c)

3 m3

d)

8.5 m3

31.

Which of these is NOT a fundamental unit of measurement?

a)

meter

b)

kilogram

c)

newton

d)

candela

32.

What is the fundamental unit of volume?

a)

cubic centimeters

b)

cubic meters

c)

cubic milllimeters

d)

liters

33.

1 cubic centimeter (1 cc) is the equivalent of what?

a)

1 m

b)

1 liter

c)

1 mL

d)

1 oz

34.

How would you describe the situation in the picture?

a)

accurate but not precise

b)

accurate and precise

c)

not accurate but precise

d)

neither accurate nor precise

35.

How would you describe the situation in this picture?

a)

accurate and precise

b)

accurate but not precise

c)

not accurate but precise

d)

neither accurate nor precise

36.

How would you describe the situation in this picture?

a)

accurate and precise

b)

accurate but not precise

c)

not accurate but precise

d)

neither accurate nor precise

37.

Which temperature scale has no negative values?

a)

Rankin

b)

Fahrenheit

c)

Kelvin

d)

Celsius

38.

Has absolute zero been reached?

a)

True

b)

False

39.

How does one determine the volume of an irregularly shaped object such as a rock?

a)

water disruption

b)

water displacement

c)

water replacement

d)

water dissolution

40.

A(n) __________ system is any system of measurement based on a decimal scale.

a)

metric

b)

accurate

c)

digital

d)

basic

41.

A chemist wants to measure the mass of a lump of coal. What SI base unit will he use?

a)

meter

b)

mole

c)

kilogram

d)

kelvin

42.

The square meter (m2) is a derived SI unit for __________.

a)

volume

b)

force

c)

pressure

d)

area

43.

Which of these measurements is the smallest?

a)

Mg

b)

ng

c)

mg

d)

dg

44.

You measure products of a chemical reaction three times and get 4.12 g, 3.25 g, and 4.79 g. The actual mass is 2.25 g. Your measurements are

a)

accurate but not precise.

b)

precise but not accurate.

c)

both accurate and precise.

d)

neither accurate nor precise.

45.

You measure products of a chemical reaction three times and get 1.56 g, 1.59 g, and 1.60 g. The actual mass is 3.62 g. Your measurements are

a)

accurate but not precise.

b)

precise but not accurate

c)

both accurate and precise

d)

neither accurate nor precise.

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