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Unit 1 Summative Practice-Methods & Measurement

Total questions: 141

Worksheet time: 9hrs 49mins

Name
Class
Date
1.

Which piece of equipment is used to measure the mass of an object in a laboratory?

a)

Graduated cylinder

b)

Triple beam balance

c)

Thermometer

d)

Bunsen burner

2.

What is the basic unit of length in the metric system?

a)

Gram

b)

Liter

c)

Meter

d)

Second

3.

Which of the following is a safety rule in the laboratory?

a)

Eat food during experiments

b)

Wear safety goggles

c)

Taste chemicals to identify them

d)

Ignore spills

4.

What is the correct scientific notation for 5,600?

a)

5.6×1025.6 \times 10^2

b)

5.6×1035.6 \times 10^3

c)

56×10256 \times 10^2

d)

0.56×1040.56 \times 10^4

5.

Which variable is deliberately changed in an experiment?

a)

Dependent variable

b)

Independent variable

c)

Controlled variable

d)

Responding variable

6.

What is the volume of a liquid measured in?

a)

Grams

b)

Liters

c)

Meters

d)

Seconds

7.

How many significant figures are in the number 0.00450?

a)

2

b)

3

c)

4

d)

5

8.

Which of the following is a step in the scientific method?

a)

Guessing the answer

b)

Forming a hypothesis

c)

Ignoring data

d)

Skipping analysis

9.

What is the freezing point of water in degrees Celsius?

a)

0°C

b)

32°C

c)

100°C

d)

-10°C

10.

Which piece of equipment is best for measuring 25 mL of water accurately?

a)

Beaker

b)

Graduated cylinder

c)

Erlenmeyer flask

d)

Test tube

11.

Convert 2.5 kilometers to meters.

a)

25 m

b)

250 m

c)

2,500 m

d)

25,000 m

12.

A student measures the mass of a rock as 12.34 g and the volume as 2.0 mL. What is the density of the rock?

a)

6.17 g/mL

b)

24.68 g/mL

c)

0.16 g/mL

d)

10.34 g/mL

13.

If a solution can dissolve more solute at a given temperature, it is called:

a)

Saturated

b)

Unsaturated

c)

Supersaturated

d)

Concentrated

14.

Which of the following graphs would best show the relationship between temperature and solubility?

a)

Bar graph

b)

Line graph

c)

Pie chart

d)

Scatter plot

15.

A student records the following data: 2.1 g, 2.15 g, 2.13 g. What is the average mass?

a)

2.12 g

b)

2.13 g

c)

2.14 g

d)

2.15 g

16.

Which of the following is the correct way to convert 0.075 L to milliliters?

a)

Multiply by 10

b)

Multiply by 100

c)

Multiply by 1,000

d)

Divide by 1,000

17.

A student needs to dilute a solution from 1.0 M to 0.5 M. What should the student do?

a)

Add more solute

b)

Add more solvent

c)

Heat the solution

d)

Remove solvent

18.

If a measurement is recorded as 3.40 × 10210^2 g, how many significant figures does it have?

a)

1

b)

2

c)

3

d)

4

19.

Which of the following is an example of a controlled variable in an experiment testing plant growth?

a)

Amount of sunlight

b)

Type of fertilizer used

c)

Height of the plant

d)

Growth rate

20.

A student needs to convert 250 mg to grams. What is the correct answer?

a)

0.025 g

b)

0.25 g

c)

2.5 g

d)

25 g

21.

What is the first step in the scientific method?

a)

Form a hypothesis

b)

Make an observation

c)

Analyze data

d)

Draw a conclusion

22.

Which of the following is used to heat substances in the laboratory?

a)

Bunsen burner

b)

Graduated cylinder

c)

Balance

d)

Pipette

23.

What is the metric prefix for one thousandth ( 10−310^{-3} )?

a)

Kilo-

b)

Milli-

c)

Centi-

d)

Micro-

24.

Which of the following is a dependent variable in an experiment?

a)

The variable you change

b)

The variable you measure

c)

The variable you keep the same

d)

The variable you ignore

25.

What is the sum of 2.3×1032.3 \times 10^3 and 4.7×1034.7 \times 10^3 in scientific notation?

a)

7.0×1037.0 \times 10^3

b)

7.0×1027.0 \times 10^2

c)

7.0×1047.0 \times 10^4

d)

7.0×1017.0 \times 10^1

26.

A student measures the length of a table as 1.25 m. How many centimeters is this?

a)

12.5 cm

b)

125 cm

c)

1,250 cm

d)

0.125 cm

27.

Which of the following is the best definition of solubility?

a)

The amount of solvent that dissolves in a solute

b)

The amount of solute that dissolves in a given amount of solvent at a specific temperature

c)

The temperature at which a substance melts

d)

The mass of a solution

28.

A student needs to prepare 100 mL of a 0.5 M solution. Which of the following describes the correct procedure?

a)

Add 0.5 moles of solute to 100 mL of solvent

b)

Add 0.05 moles of solute to enough solvent to make 100 mL

c)

Add 0.5 grams of solute to 100 mL of solvent

d)

Add 5 moles of solute to 100 mL of solvent

29.

Which of the following is the correct dimensional analysis setup to convert 5.0 L to mL?

a)

5.0 L×1 mL1000 L5.0 \, \text{L} \times \frac{1 \, \text{mL}}{1000 \, \text{L}}

b)

5.0 L×1000 mL1 L5.0 \, \text{L} \times \frac{1000 \, \text{mL}}{1 \, \text{L}}

c)

5.0 L×1 L1000 mL5.0 \, \text{L} \times \frac{1 \, \text{L}}{1000 \, \text{mL}}

d)

5.0 L×100 mL1 L5.0 \, \text{L} \times \frac{100 \, \text{mL}}{1 \, \text{L}}

30.

A student records a measurement as 0.0200 g. How many significant figures does this value have?

a)

1

b)

2

c)

3

d)

4

31.

What is the first step in the scientific method?

a)

Forming a hypothesis

b)

Conducting an experiment

c)

Making an observation

d)

Analyzing data

32.

Which of the following is a tool used to measure mass?

a)

Thermometer

b)

Balance scale

c)

Graduated cylinder

d)

Stopwatch

33.

In an experiment, the variable that is changed or controlled by the scientist is called the:

a)

Dependent variable

b)

Independent variable

c)

Controlled variable

d)

Extraneous variable

34.

Which of the following is a safety rule in a science lab?

a)

Eating and drinking are allowed

b)

Always wear safety goggles

c)

Running is permitted

d)

Ignore spills

35.

What is the purpose of a control group in an experiment?

a)

To test the hypothesis

b)

To serve as a standard for comparison

c)

To change the outcome of the experiment

d)

To introduce new variables

36.

Which tool is used to measure the volume of a liquid?

a)

Ruler

b)

Balance scale

c)

Graduated cylinder

d)

Stopwatch

37.

What is the dependent variable in an experiment?

a)

The variable that is changed by the scientist

b)

The variable that is measured or observed

c)

The variable that remains constant

d)

The variable that is not used

38.

Which of the following is NOT a step in the scientific method?

a)

Formulating a hypothesis

b)

Conducting an experiment

c)

Making a guess

d)

Analyzing data

39.

What is the main purpose of using a thermometer in a science experiment?

a)

To measure mass

b)

To measure temperature

c)

To measure volume

d)

To measure time

40.

In an experiment, what is the term for the factors that are kept the same throughout the experiment?

a)

Independent variables

b)

Dependent variables

c)

Controlled variables

d)

Extraneous variables

41.

Which of the following is a qualitative observation?

a)

The liquid is 50 mL

b)

The temperature is 25°C

c)

The solution is blue

d)

The mass is 100 grams

42.

What is the correct order of the steps in the scientific method?

a)

Observation, Hypothesis, Experiment, Analysis, Conclusion

b)

Hypothesis, Observation, Experiment, Analysis, Conclusion

c)

Experiment, Observation, Hypothesis, Analysis, Conclusion

d)

Analysis, Observation, Hypothesis, Experiment, Conclusion

43.

Which of the following tools is used to measure time in an experiment?

a)

Thermometer

b)

Balance scale

c)

Graduated cylinder

d)

Stopwatch

44.

What is a hypothesis?

a)

A random guess

b)

A testable prediction

c)

A proven fact

d)

An unchangeable statement

45.

Which of the following is an example of a quantitative observation?

a)

The plant is tall

b)

The solution is clear

c)

The temperature is 30°C

d)

The liquid smells sweet

46.

  1. Which prefix is the smallest?

a)

hecto

b)

centi

c)

kilo

d)

milli

47.

Which tool could you use to measure volume?

a)

Yard stick

b)

Meter stick

c)

Graduated cylinder

d)

  1. Balance scale

48.

In the SI system of measurement, the unit of length is the:

a)

temperature

b)

liter

c)

gram

d)

meter

49.

In the metric system, a unit of mass is the:

a)

temperature

b)

liter

c)

gram

d)

meter

50.

  1. The liter is a unit of:

a)

  1. volume

b)

  1. length

c)

temperature

d)

mass

51.

Using the graduated cylinder to the right, pick the accurate  AND precise measurement below.

a)

22 mL

b)

20mL

c)

21mL

d)

23mL

52.

What happens to a decimal place in the number when you are converting from a smaller metric unit to a larger unit?

a)

  1. Converting doesn't require a placement of a decimal point.

b)

The decimal place moves to the left.

c)

The decimal place moves to the right.

d)

The decimal place doesn't move at all.

53.

How many meters are in 5.0 cm?

a)

0.050

b)

500

c)

0.0005

d)

0.5

54.

 How many centiliters are there in a 750-mL bottle of apple cider?

a)

7,500

b)

0.75

c)

75.0

d)

7.5

55.

Which is the closest to the length of a pencil?

a)

8 inches

b)

8 feet

c)

8 yards

d)

8mm

56.

What are the base metric units used in science?

a)

kilogram, millimeter, and liter

b)

gram, liter, and meter

c)

milligram and kiloliter

d)

  1. kilogram and kiloliter

57.

A woman has a body mass of 53 kg. What is her mass in grams?

a)

5.3

b)

0.053

c)

  1. 53,000

d)

53

58.

Looking at the picture, how would you classify the measurements?

a)

Precise & accurate

b)

Precise but not accurate

c)

Accurate but not precise

d)

Not accurate or precise

59.

  1. Which is the closest to the mass of an adult sheep?

a)

50 kilograms

b)

  1. 50 grams

c)

50 ounces

60.

Which is the closest to the width of a strawberry?

a)

20 millimeters

b)

20 meters

c)

  1. 20 kilometers

61.

  1. Which is closer to the volume of a large soup pot?

a)

10 milliliters

b)

10 liters

62.

Identify the most reasonable unit to measure the mass of a refrigerator.

a)

ounces

b)

pounds

63.

What measurement would you use to measure how far it is between 2 cities?

a)

yard

b)

kilometer

c)

meter

d)

millimeter

64.

What unit should you use to measure the length of a whale?

a)

inch

b)

meter

c)

centimeter

d)

kilometer

65.

Looking at the picture, how would you classify the measurements?

a)

Precise & accurate

b)

Precise but not accurate

c)

Accurate but not precise

d)

Not accurate or precise

66.
When converting from large to small:
a)
multiply
b)
divide
67.
When converting from small to large:
a)
multiply
b)
divide
68.
The metric unit of measurement for mass is the: 
a)
gram
b)
liter 
c)
meter
69.
The metric unit of measurement for capacity is:
a)
gram
b)
liter 
c)
meter
70.
The metric unit of measurement for length  is:
a)
gram
b)
liter 
c)
meter
71.

Standard measurement system based on the number 10

a)

Metric System

b)

US Customary

c)

Density

d)

Weight

72.

What is the correct order from smallest to largest?

a)

milliliter, liter, kiloliter

b)

liter, milliliter, kiloliter

c)

kiloliter, milliliter, liter

d)

liter, kiloliter, milliliter

73.

Which metric prefix means 0.01?

a)

centi-

b)

deci-

c)

hecto-

d)

milli-

74.

Which unit is not used in the metric system?

a)

meter

b)

gram

c)

pound

d)

liter

75.

What is the Si unit for the number of objects?

a)

particle

b)

atoms

c)

number

d)

mole

76.

What temperature is used in SI?

a)

Fahrenheit

b)

Kelvin

c)

Celsius

77.

The prefix Mega stands for:

a)

1,000

b)

100

c)

1,000,000

78.

The second is represented using the:

a)

A

b)

K

c)

s

79.

The prefix kilo is best written as:

a)

10^6

b)

10^3

c)

10^2

80.

µ is the symbol of ______.

a)

Deka

b)

Hecto

c)

Mega

d)

Micro

81.

What is the multiple of the prefix pico?

a)

10-12

b)

10-3

c)

103

d)

1012

82.

102 is the multiple of what prefix?

a)

Deka

b)

Hecto

c)

Mega

d)

Micro

83.
The prefix "milli" means:
a)
1000
b)
1/1000
c)
1,000,000
d)
1/1,000,000
84.

All measurements are made up of ...

a)

a value and a unit

b)

a value and a calculation

c)

a calculation and a unit

d)

a unit and a series

85.
What tool do scientists use to measure volume of a liquid?
a)
graduated cylinder
b)
meter stick
c)
spring scale
d)
triple-beam balance
86.
What do we use a meter stick to measure?
a)
volume
b)
distance/length
c)
mass
d)
weight
87.

Read the graduated cylinder to the nearest 0.1 of a milliliter.

a)

76.00 mL

b)

76 mL

c)

76.0 mL

d)

78.0 mL

88.
The unit cm3 is used to express 
a)
 length.
b)
mass.
c)
volume. 
d)
time.
89.

A system of units of measure widely accepted by the scientific community (SI for short)

a)

International System of Units

b)

World Wide Weight

c)

Science Instruments

d)

Use These Measures

90.

In the metric system, the base unit for length is the

a)

second

b)

gram

c)

meter

d)

liter

91.
What is the volume of the block?
a)
25 cubic centimeters
b)
33 cubic centimeters
c)
8 cubic centimeters
d)
58 cubic centimeters
92.

What units are on a triple beam balance?

a)

Ounces

b)

Grams

c)

Milligrams

d)

Pounds

93.

What are the intervals on a 10mL graduated cylinder?

a)

1 mL

b)

10 mL

c)

0.1 mL

d)

100 mL

94.

What is the number 455000 in scientific notation?

a)

45.5 x 105

b)

4.55 x 105

c)

4.55 x 10-5

d)

455 x 105

95.

The number 3.6 x 10-4 in standard notation is what?

a)

0.000036

b)

0.0000036

c)

0.00036

d)

0.0036

96.

The number 100,000 expressed in scientific notation is

a)

1 x 105

b)

1 x 106

c)

1 x 10-5

d)

1 x 10-6

97.

Express .0001870 in scientific notation

a)

1.87 x 104

b)

1.870 x 10-4

c)

1.870 x 104

d)

1.87 x 10-4

98.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
99.
Express the following in standard notation:
8.025 x 10-8
a)
.00000008025
b)
.000000008025
c)
802,500,000,000
d)
80,250,000,000
100.
UNDERSTANDING
If the exponent is a positive number...
a)
you will get a large number
b)
you will get a smaller number
101.

Which of these numbers is the smallest?

a)

3.5 x107

b)

3 x107

c)

5 x107

d)

5.5 x107

102.

Which of these numbers is the greatest?

a)

9 x 109

b)

8.1 x108

c)

9.02 x109

d)

6.35 x107

103.
What is scientific notation?
a)
A long way to write really short  numbers
b)
A short way to write really long numbers
c)
I don't know...
d)
None of the above
104.

You know that 12 inches = 1 foot.  60 inches is (a)   feet.

Choose from the below words
720 feet
5 feet
5 inches
72 feet
105.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
106.
You know that 12 inches = 1 foot.  Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
107.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
108.

How many inches are in 1 mile? (5280ft = 1mi; 12in = 1ft)

a)

66330in

b)

63360in

c)

63660in

d)

63066in

109.
Solve the proportion:
a)
4
b)
8
c)
14
d)
10
110.
Solve the proportion.
a)
1
b)
3
c)
6
d)
5
111.
A 12-ounce bottle of shampoo lasts Enrique 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?
a)
24 Weeks
b)
24-ounce bottle
c)
10.6 Weeks
d)
10.6-ounce bottle
112.
The class has 12 girls and 16 boys. What is the ratio of total students to boys? (simplest form)
a)
28/16
b)
7/4
c)
16/28
d)
12/16
113.

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

a)

0.867 ft

b)

7.8 ft

c)

8.07 ft

d)

8.27 ft

114.

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 people are in line?

a)

32 people

b)

32 minutes

c)

12.5 minutes

d)

12.5 people

115.

Convert 62 miles/hour to feet/second. (5,280 ft = 1 mi)

a)

5,456 ft/s

b)

.003 ft/s

c)

91 ft/s

d)

909 ft/s

116.
Gas costs $3.05 a gallon, and your car travels at 27 miles for each gallon of gas. How far can you travel in your car with $95 in your pocket?
a)
11 miles
b)
840 miles
c)
7800 miles
d)
870 miles
117.

Complete the statement:
5.0 cm/min = ______ m/day

a)

72

b)

840

c)

7.2

d)

5,040,000

118.
A passenger jet has a speed of 900 km/h.
What is its speed in m/s?
(1 km = 1000 m)
a)
250 m/s
b)
324 m/s
c)
1,500 m/s
d)
2,500 m/s
119.
A bicycle has a speed of 6 m/s. What is its speed in km/h?  (1 km=1000 m)
a)
21.6 km/h
b)
16.67 km/h
c)
2.16 km/h
d)
1.67 km/h
120.
5 gallons to ? L 
1gal = 3.785 L
a)
18.95
b)
.1895
c)
1895
d)
1895000
121.
How many inches are in 1 mile?
(Hint:  5280 ft = 1 mi)
a)
66,330 in
b)
63,360 in
c)
63,660 in
d)
63,066 in
122.

Choose the best buy (lowest cost per bottle)

a)

6 bottles for $3.79

b)

9 bottles for $4.50

c)

12 bottles for $6.89

123.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
124.

The space station is under attack and crew needs to evacuate.

Data shows that 2 space capsules together can hold 8 people. How many capsules do you need for the whole crew of 47 people?

a)
10
b)
12
c)
15
d)
20
125.

Convert 45 kilometers to meters. (1 km = 1000 m)

a)

450 m

b)

4500 m

c)

45000 m

d)

450000 m

126.

If 1 liter of water weighs 1 kilogram, how much does 3.5 liters of water weigh?

a)

3.5 kg

b)

35 kg

c)

0.35 kg

d)

350 kg

127.

How many sig figs are there in the following measurement?

100.00 m

a)

1

b)

3

c)

4

d)

5

128.

How many sig figs are there in the following measurement?

100000000 km

a)

1

b)

9

c)

10

d)

8

129.

How many sig figs are there in the following measurement?

4004 grams

a)

1

b)

2

c)

3

d)

4

130.

How many sig figs are there in the following measurement?

0.000008 L

a)

1

b)

2

c)

6

d)

7

131.

How many sig figs are there in the following measurement?

9009.00 km

a)

2

b)

4

c)

5

d)

6

132.

How many sig figs are there in the following measurement?

0.0009009090000 g

a)

3

b)

10

c)

14

d)

13

133.

How many sig figs are there in the following number of grams?


4001.

a)

1

b)

3

c)

4

d)

2

134.

How many sig figs are there in the following measurement?

27000000 m

a)

2

b)

5

c)

8

d)

6

135.

How many sig figs are there in the following measurement?

5.00000008 g

a)

2

b)

6

c)

9

d)

7

136.

Which of the following numbers has three significant figures?

a)

1014 m

b)

101 mm

c)

1000 s

d)

all of the choices

137.

How many significant figures does the following measurement have: 0.998005 m

a)

9

b)

10

c)

6

d)

5

138.
All of the following have one significant figure except:
a)
100 cm
b)
0.0001 cm
c)
2 cm
d)
2.00 cm
139.
Which of the following numbers have four significant figures?
a)
56.75 g
b)
40.01 g
c)
0.6000 g
d)
all of the choices
140.

What are significant figures?

a)

a way of writing very large or very small numbers

b)

the meaningful figures in our measurements

c)

how close a measurement is to the correct value for that measurement

d)

to how close the agreement is between repeated measurements

141.

In the measurement 48.93 L, which digit is estimated?

a)

4

b)

8

c)

9

d)

3

e)

none of the above

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