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Unit 2 Test Review

Total questions: 70

Worksheet time: 33hrs 33mins

Name
Class
Date
1.

The number of sig figs in 100.00 is (a)   .

2.

The number of significant figures in 100000000 is (a)   .

3.

The number of significant figures in 0.000008 is (a)   .

4.

The number of sig figs in 0.00400 is (a)   .

5.

The number of significant figures in 9009.00 is (a)   .

6.

The number of sig figs in 4000. is (a)   .

7.

Round 0.010229 to four sig figs

(a)  

8.

Round 1009 to three sig figs

(a)  

9.

What is the measurement 1042 Liters rounded to 2 significant figures? 

a)

1040 L

b)

1.1 x 103 L

c)

1.0 x 10L

d)

1050 L

10.

What is 98.907 rounded to 1 significant figure?

a)

98.9

b)

90

c)

100

d)

98.91

11.

The product of 3.20 x 4.0 x 12.399 rounded to the correct number of sig figs is (a)   .

12.

Divide 7.78x1089.67x109\frac{7.78x10^8}{9.67x10^-9}   and express in scientific notations.

a)

8.05x10168.05x10^{16}  

b)

1.24x10171.24x10^{17}  

c)

8.05x10188.05x10^{18}  

d)

8.05×1028.05\times10^{-2}  

e)

1.24×1011.24\times10^{-1}  

13.

Multiply:
(3.4 x 105)(1.20 x 10-3)

a)

4.08×1084.08\times10^{-8}  

b)

4.08×1084.08\times10^8  

c)

4.1×1024.1\times10^2  

d)

4.1×10154.1\times10^{-15}

e)

4.08×1034.08\times10^3  

14.

How would you write 4.3756 x 10in standard form?

a)

437,560,000

b)

0.00043756

c)

43,756

d)

4,3756

15.

How would you write 0.0005 in scientific notation?

a)

50 x 105

b)

5 x 10-4

c)

5 x 103

d)

.5 x 103

16.

The volume of the liquid in the graduated cylinder is (a)   mL.

17.

Is 11 g greater than, less than, or equal to 1,100 mg?

a)

greater than

b)

less than

c)

equal to

18.

Which two of the following are the same?

a)

1 kilometer

b)

10 meters

c)

1 millimeter

d)

1 decameter

19.

If there are 10 centimeters in a decimeter, how many decimeters in 1 centimeter?

a)

1 centimeter = 1 decimeter

b)

1 centimeter = 10 decimeter

c)

1 centimeter = 0.01 decimeter

d)

1 centimeter = 0.1 decimeter

20.

1 cm = (a)   mm

21.

650 m is equal to (a)   km.

22.

63 cm _____ 6 m 

a)

<

b)

>

c)

=

23.

One container can hold 65 grams of water. How many grams of water can 5 containers hold? Circle the conversion factor needed to answer this question.

a)

5 containers65 grams\frac{5\ containers}{65\ grams}  

b)

1 container65 grams\frac{1\ container}{65\ grams}  

c)

65 grams1 container\frac{65\ grams}{1\ container}  

d)

65 grams5 containers\frac{65\ grams}{5\ containers}  

24.

Convert the following:
4.2 deciliters to liters

a)

0.42 Liters

b)

4.2 Liters

c)

42 Liters

d)

0.042 Liters

25.

What conversion factor would be best for this problem if 1 kg is equivalent to 2.2 lbs?

a)

1 kg2.2 lbs\frac{1\ kg}{2.2\ lbs}  

b)

1 lb2.2 kg\frac{1\ lb}{2.2\ kg}  

c)

1000 g1 kg\frac{1000\ g}{1\ kg}  

d)

1 kg1000 g\frac{1\ kg}{1000\ g}  

26.
a)
Student A
b)
Student B
c)
Student C
d)
Cannot be determined
27.
a)
Student A
b)
Student B
c)
Student C
d)
Cannot be determined
28.

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  The percent error is (a)   . Include % in your answer.

29.

Find the percent error. 

You estimate that you sent 135 texts last week but when you get the bill it was actually 108. 

a)

135108135×100=20%\frac{135-108}{135}\times100=20\%  

b)

135108108×100=25%\frac{135-108}{108}\times100=25\%  

c)

108135×100=80%\frac{108}{135}\times100=80\%

d)

135108×100=125%\frac{135}{108}\times100=125\%  

30.

The length of this screw is (a)  

31.

The mass displayed on the balance is (a)   .

32.

When measuring the length of this crayon with the metric ruler provided, the first decimal place that is uncertain is:

a)

tenths of a centimeter

b)

thousandths of a centimeter

c)

hundredths of a centimeter

d)

meters

33.

8.31700 x 105 in standard form is (a)  

34.

Express the following in scientific notation:
.000045

a)

4.5 x 10-5

b)

450 x 10-6

c)

4.50 x105

d)

45 x 106

35.

Express the following in scientific notation:
10,030,400,000

a)

1.00304 x 109

b)

1.00304 x 1010

c)

1.00403 x 1010

d)

1.00304 x10-10

36.

Which of the following numbers has 4 sig figs?

a)

0.089

b)

5000

c)

0.009540

d)

7.1001

37.

When 8.75 is rounded to 2 significant figures, the result is (a)  

38.

Multiply:
(9.4 x 106)(3.2 x 105)

a)

30.08 x 1011

b)

30. x 101

c)

3.0 x 1012

d)

3.0 x 102

39.

Multiply:
(3.4 x 105)(1.2 x 10-3)

a)

4.08 x 10-8

b)

4.8 x 102

c)

4.08 x 102

d)

4.08 x 10-15

40.

Solve:  (6 × 106) ÷ (2.0 × 103)

a)

12 x 103

b)

3 x 109

c)

1.2 x 104

d)

3 x 103

41.

Evaluate and write answer in scientific notation.
(9 x 1018) ÷ (3 x 1016)

a)

3 x 102

b)

6 x 102

c)

27 x 1034

d)

3 x 1034

42.

Divide:
(6.9 × 107) ÷ (2.3 × 10-3)

a)

3.0 x 1010

b)

3.0 x 104

c)

3 x 10-4

d)

3 x 10-11

43.

How many significant figures are in the following number: 1020 m

a)

1

b)

2

c)

3

d)

4

44.

How many sig figs in the number 101?

a)

1

b)

2

c)

3

d)

Only Ronald McDonald knows for sure.

45.

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

a)

1 m2

b)

1.1 m2

c)

1.0947 m2

d)

1.09 m2

46.

24.4 / 2.2

a)

11.1

b)

11.09

c)

11

d)

11.091

47.

What SI unit is used to measure length?

a)

meters

b)

liters

c)

centimeters

d)

kilograms

48.

What prefix is represented by the following symbol:  k

a)

hecto

b)

kilo

c)

deci

d)

deka

49.

What prefix is represented by the following symbol: m

a)

hecto

b)

kilo

c)

milli

d)

mega

50.

Convert 12 km to m

a)

1.2 x 102 m

b)

1.2 x 103 m

c)

1.2 x 104 m

d)

1.2 x 105m

51.

Convert 5720 cm to km

a)

5.72 x 10-2 km

b)

5.720 x 10-1 km

c)

5.720 km

d)

5.72 x 10 km

52.

How many cm are in 1 km?

a)

105 cm

b)

1 cm

c)

104 cm

d)

102 cm

53.

285 kg = ____ g

a)

2.85 x 105

b)

2.85 x 102

c)

2.85 x 103

d)

2.85 x 104

54.
Convert 0.25 m to mm
a)
25
b)
2.5
c)
250
d)
0.025
55.

8.3 kg = ______g

a)

8.3 x 10-2 g

b)

8.3 x 102 g

c)

8.3 x 10 g

d)

8.3 x 103 g

56.

How many cg are in a g?

a)

10

b)

102

c)

103

d)

106

57.

How many dL are in a L?

a)

10

b)

102

c)

103

d)

106

58.

Convert the following SI Units: 3.2 km to meters

a)

32

b)

3.2 x 102

c)

3.2 x 103

d)

3.2 x 104

59.
It is a measure of how close measurements come to each other when they are made in the same way
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
60.
An irregularly-shaped sample of aluminum (Al) is put on a balance and found to have a mass of 43.6 g.  The student decides to use the water-displacement method to find the volume.  The initial volume reading is  25.5 mL and, after the Al sample is added, the water level has risen to 41.7 mL.  Find the density of the Al sample in g/cm3.  (Remember:  1 mL = 1 cm3.)
a)
1.7 g/mL
b)
1.05 g/mL
c)
0.65 g/mL
d)
2.7 g/mL
61.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
62.
When a measurement is repeatable and consistent it is said to have...
a)
High precision
b)
Low precision
c)
High accuracy
d)
Low accuracy
63.
A set of data are all close to each other, but they are not close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
64.

Which of the following is represented by this picture?

a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
65.

4.20 deciliters is equal to (a)   liters.

Don't include units in your answer.

66.

Which of the following equipment is used to measure volume? Select all that applies.

a)

Beaker

b)

Graduated cylinder

c)

Buret

d)

Test Tube

67.

The volume of the water in this graduated cylinder is (a)   . Include units

68.

0.397 m2 is equal to (a)   cm2 in standard form. Do not include units in your answer.

69.

Convert 239 dm3 to cm3

a)

2390 cm3

b)

0.000239 cm3

c)

0.239 cm3

d)

239,000 cm3

70.

2859 cm3 is equal to (a)   milliliters. Type your answer in standard form. Do not include units in the final answer.