Free Printable practice test on measurement, sig. figs. and dimensional ana

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practice test on measurement, sig. figs. and dimensional ana

Total questions: 58

Worksheet time: 2hrs 56mins

Name

Class

Date

How many sig. fig. are in the number below:
106.00

How many sig. fig. are in the number below:
0.056

How many sig. fig. are in the number below:
705000

Convert the following to scientific notation.

0.000480

4.8 x 10^-4

4.80 x 10^-4

48 x 10^-5

4.80 x 10⁴

Round 1047.78 to three sig figs

104

105

1050

1050.00

What is 98.907 rounded to 1 significant figure?

98.9

100

98.91

Calculate the answer to the following problem and round the final answer to the correct number of sig figs:
4.627 / 0.00371 =

1247.169811

1250

1247

1240

Calculate the answer to the following problem and round the final answer to the correct number of sig figs:
24.567 + 0.04478 =

24.61178

24.612

24.611

24.61

Convert 9.24 centimeters to hectometers.

0.000924 hm

924000 hm

924 hm

92.4 hm

10.

240 cm = ___________ m

2400

2.4

0.24

11.

100 cL = _____mL

10,000

1,000

0.1

12.

Scenario: You want to test whether water helps to improve plant growth. What is the Independent Variable? (Remember: Independent Variables are what "I"change in the experiment.

The growth of the plant

Amount of Sunlight

Amount of Water

13.

Scenario: You want to test whether water improves the growth of plants. What is the Dependent variable? (Remember: Dependent Variables are what you are measuring or observing.)

The amount of water

The growth of the plant

The amount of sunlight

14.

How many significant figures does 0.025 kg have?

15.

Calculate
12.34 × 1.234 × 0.1234

1.87908

1.879

1.9

1.8790809

16.

What is the volume of Object X?

10.0 cm³

15.0 cm³

20.0 cm³

25.0 cm³

17.

Which box has a higher density?

Box A

Box B

cannot be determined

they are the same

18.

What is the volume of 150 grams of lead if it has a density of 11.3 g/cm³? _{(All calculations should have the correct sig figs)}

13.3 g

13 cm³

1695 g

1700 cm³

19.

Calculate the mass of a substance which has a volume of 35.0 cm³ and a density of 0.50 g/cm³._{(All calculations should have the correct sig figs)}

17.5 g

0.014 g

18 g

70. g

20.

If an object has a density of 21.45 g/cm³, what will be the density of the object if you cut it in half? _{(All calculations should have the correct sig figs)}

21.45 g/cm³

10.725 g/cm³

2 g/cm³

42.9 g/cm³

21.

What is the volume of the purple liquid using correct sig figs?

8.4 mL

8.5 mL

8.43 mL

8.50 mL

22.

Which statement about the measurement 17.4 cm is TRUE?

All of the digits are known with certainty.

The 1 and 7 are certain, but the 4 is uncertain.

The 1 is certain, but the 7 and 4 are uncertain.

All of the digits are uncertain.

23.

What is the volume of the liquid shown in this graduated cylinder?

4.30 mL

4.35 mL

4.4 mL

4.40 mL

24.

Record the temperature using correct sig figs.

16⁰C

16 1/2 ⁰C

16.33⁰C

16.4⁰C

25.

Record the volume of the liquid in the beaker using correct sig figs.

44 mL

40 mL

50 mL

48 mL

26.

How do you write
1001
in scientific notation?

1.0001 x 10⁴

1.01 x 10⁵

1.001 x 10³

10.1 x 10³

27.

Solve:
(6 x 10⁶) / (2 x 10³)

12 x 10³

3 x 10⁹

1.2 x 10⁴

3 x 10³

28.

Calculate 1.23 m x 0.89 m and give your answer with the appropriate number of significant figures.

1.0 m²

1.1 m²

1.0947 m²

1.09 m²

29.

You know 1000 mg = 1 g. Convert 2.5 grams into milligrams.

25 mg

25,000 mg

250 mg

2500 mg

30.

Convert 3.5 gallons into cups. (1gal = 16cups)

56 cups

0.21875 cups

19.5 cups

48 cups

31.

The length of a desk is 3.5 feet. How many centimeters is the length?
(there are 2.54 cm in an inch)

120.23

106.68

117.12

32.

The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet? (3 ft=1 yd)

0.867 ft

7.8 ft

8.07 ft

8.27 ft

33.

Complete the statement:

5.0 cm/min = ______ m/day

(100 cm = 1 m)

840

7.2

5,040,000

34.

Three ounces of cinnamon cost $2.40. If there are 16 ounces in 1 pound, how much does cinnamon cost per pound? Ignore significant figures

$12.80

$21.20

$38.40

$45.20

35.

A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1 kilogram. Assuming the weight loss happened at a constant rate, about how many pounds did the group lose each day?

8.8 pounds

12.7 pounds

61.6 pounds

89.1 pounds

36.

When solving problems using dimensional, the number of significant figures a conversion factor has is...

variable

zero

three

infinite

37.

Long hair in the laboratory must be

cut short

held away from the experiment with one hand

always neatly groomed

tied back or kept entirely out of the way with a hair band, hairpins, or other confining device

38.

I must follow all instructions, written and verbal, about the laboratory procedures given by the teacher.

True

False

39.

I will immediately notify the instructor only about major accidents.

True

False

40.

When in the lab...

long sleeves and loose clothing should be rolled up

closed toe shoes should be worn

long hair should be pulled back

all of the above

41.

If you do not understand a direction or part of a lab procedure, you should

skip it and go on to the next part.

ask the instructor before proceeding

try several methods until something works

figure it out as you do the lab

42.

All chemicals in the lab are to be considered dangerous

True

False

43.

Eating in the lab is okay, as long as you clean up your mess.

True

False

44.

If the bell rings before you finish, it's not a problem if you leave everything. You can come back later and clean it up.

True

False

45.

If you do not understand a direction or part of a lab procedure, you should

skip it and go on to the next part.

ask the instructor before proceeding

try several methods until something works

figure it out as you do the lab

46.

What is the density of a rock if its mass is 36g and its volume is 12.0 cm³? _{(All calculations should have the correct sig figs)}

432 g/cm³

0.33 g/cm³

48 g/cm³

3.0 g/cm³

47.

Calculate the mass of a substance which has a volume of 35.0 cm³ and a density of 0.50 g/cm³._{(All calculations should have the correct sig figs)}

17.5 g

0.014 g

18 g

70. g

48.

What do we know about the density of lamp oil, rubbing alcohol, and vegetable oil?

The density is greater than 1.0 g/mL

The density is less than 1.0 g/mL

The density is equal to 1.0 g/mL

The density can not be determined

49.

What is the volume of Object X?

10.0 cm³

15.0 cm³

20.0 cm³

25.0 cm³

50.

After completing an experiment, all chemical wastes should be

left at your lab station for the next class

disposed of according to your instructor's directions

dumped in the sink

taken home

51.

The first thing you should do if you get injured in the lab is

tell the instructor immediately

see a doctor after school

visit the school nurse after class

apply first aid yourself

52.

Which of the following measurements contains two significant figures?

0.00400 L

0.00404 L

0.00044 L

0.00440 L

53.

How many Significant Figures in the number below?
4.56 x 10³

54.

How would you write 564,000,000 in scientific notation?

5.64 x 10^-7

5.64 x 10⁶

5.64 x 10⁸

56.4 x 10⁷

55.

Substance with a DEFINITE shape and DEFINITE volume...

solid

liquid

gas

56.

Substance with NO definite volume or shape...

solid

liquid

gas

57.

5. What is it called when a solid turns directly into a gas?

Sublimation

Condensation

Liquid

58.

The phase change from water vapor to liquid water is known as...

evaporation

precipitation

condensation

sublimation

100 %

practice test on measurement, sig. figs. and dimensional ana

Total questions: 58

Worksheet time: 2hrs 56mins

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