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Unit 2 Megaquiz

Total questions: 95

Worksheet time: 3hrs 58mins

Name
Class
Date
1.

Americans drink 5,604,000 gallons of sweet tea each day. How many liters is that?

a)

21,200,000 L

b)

21,240,000 L

c)

21,207,190.2 L

d)

21,000,000 L

2.

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

3.

How many kilograms of calcium are there in 173 pounds of calcium?

a)

1.10 kg

b)

78.5 kg

c)

110 kg

d)

78500 kg

4.

How many minutes are in a school year, 187 days?

a)

269,280 min.

b)

16, 200 min.

c)

16, 156 min.

d)

269,000 min.

5.

A child weighs 40.0 lb and is to receive 0.10 mg of an antibiotic for each kg of body weight. How many milligrams of the antibiotic shall the child receive? (1 kg = 2.2 lbs)

a)

18.2 mg

b)

182 mg

c)

0.182 mg

d)

1.82 mg

6.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
7.
How many significant figures: 2016 m
a)
1
b)
2
c)
3
d)
4
8.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
9.
How many significant figures: 1000 mL
a)
1
b)
2
c)
3
d)
4
10.
How many significant figures: 100.000 cL
a)
1
b)
3
c)
5
d)
6
11.
How many significant figures: 0.001 g
a)
4
b)
3
c)
2
d)
1
12.
How many sig figs are there?
100000000
a)
1
b)
9
c)
10
13.

Perform the following calculation and round to the proper number of significant figures:

923 g ÷ 20312 cm3

a)

0.04 g/cm3

b)

0.045 g/cm3

c)

0.0454 g/cm3

d)

0.05 g/cm3

14.

Perform the following calculation and round to the proper number of significant figures:

1.23 m x 0.89 m

a)

1.0 m2

b)

1.1 m2

c)

1.0947 m2

d)

1.095 m2

15.

Perform the following calculation and round to the proper number of significant figures:

7.987 m - 0.54 m

a)

7.45 m

b)

7.447 m

c)

7.4 m

d)

7.5 m

16.

Perform the following calculation and round to the proper number of significant figures:

12.47 g ÷ 3.2 mL

a)

4 g/mL

b)

3.9 g/mL

c)

3.90 g/mL

d)

3.897 g/mL

e)

40. g/mL

17.

Perform the following calculation and round to the proper number of significant figures:

12.34 + 1.234 + 0.1234

a)

13.6974

b)

13.697

c)

13.70

d)

13.7

18.

Perform the following calculation and round to the proper number of significant figures:

12.34 cm × 1.234 cm × 0.1234 cm

a)

1.87908 cm3

b)

1.879 cm3

c)

1.9 cm3

d)

1.8790809 cm3

19.

Perform the following calculation and round to the proper number of significant figures:

20.2 cm ÷ 7.41 s

a)

2.726045884 cm/s

b)

2.72604 cm/s

c)

2.73 cm/s

d)

2.72 cm/s

e)

150. cm/s

20.

Perform the following calculation and round to the proper number of significant figures:

5.9 cm x 6.01 cm

a)

35.459 cm2

b)

35.46 cm2

c)

35.5 cm2

d)

35 cm2

e)

0.98 cm2

21.

Write in scientific notation. 0.000024

a)

2.4 x 104

b)

2.4 x 105

c)

2.4 x 10-4

d)

2.4 x 10-5

22.

Write in scientific notation. 0.000000768

a)

7.68 x 107

b)

7.68 x 108

c)

7.68 x 10-7

d)

7.68 x 10-8

e)

76.8 x 10-7

23.

Write in scientific notation. -318000

a)

-3.18 x 106

b)

-3.18 x 10-6

c)

-3.18 x 105

d)

-3.18 x 10-5

24.

Write in scientific notation. 45.9

a)

4.59 x 102

b)

4.59 x 101

c)

4.59 x 10-1

d)

4.59 x 10-2

25.

Write in scientific notation. 31487546.389

a)

3.1487546389 x 10

b)

3.1487546389 x 106

c)

3.1487546389 x 10-7

d)

3.1487546389 x 107

26.

Write in scientific notation. 79

a)

7.9 x 101

b)

7.9 x 10-1

c)

7.9 x 102

d)

7.9 x 10-2

27.

Write in scientific notation. 7

a)

7 x 100

b)

7 x 101

c)

7 x 102

d)

7 x 103

28.

Write in scientific notation. 0.0000000000000913

a)

9.13 x 1014

b)

9.13 x 10-14

c)

9.13 x 1013

d)

9.13 x 10-13

29.

What exactly is scientific notation?

a)

Scientific notation is a mathematical expression used to represent a decimal number between 1 and 10 so you can write large numbers using less digits.

b)

Scientific notation is an expression involving multiplication with a decimal between 1 and 10.

c)

Scientific notation is a thing used in math.

d)

Scientific notation is a way of presenting a number using less digits than the actual number.

30.

Solve: (Scientific Notation)

(5.25x107)+(8.6x10-5)

a)

5.20x107

b)

9x106

c)

4.76x108

d)

5.25x107

31.

Solve: (Scientific Notation)

(5x10-18) (7.5x10-3)

a)

10x3.75-19

b)

3.75x10-20

c)

4x10-18

d)

5x1017

32.

Solve: (Scienfiic Notation)

(7x10-8)-(3.75x105)

a)

10x3.755

b)

4x10x-6

c)

-3.75x105

d)

3.75x10-5

33.

How are some ways you can use scientific notation in real life? (More than 1 answer)

a)

To present a bigger number using less digits.

b)

In a presentation to explain large statistics using less digits.

c)

To say the number with the most digits as possible.

d)

To present a really small number with less digits.

34.

Solve the following:

(12x10-4) (4x104)

a)

-3.99x104

b)

4x10-1

c)

4.8x101

d)

3.99x10-5

35.

Solve the following:

(5x108) / (7x10-3)

a)

6.8x109

b)

-7.5x10565668

c)

7.14x10-10

d)

7.14x1010

36.

Solve:

(2x105)+(6x104)

a)

3x10-5

b)

2.6x10-5

c)

3.0x105

d)

2.6x105

37.
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
38.

How close a measurement is to the accepted value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

39.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
40.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
41.

The students measured length during a science experiment, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

a)
15.79%
b)
18.75%
c)
2.25%
d)
18%
42.

Which is the more precise measurement?

a)

4 mL

b)

4.3 mL

c)

4.30 mL

d)

4.300 mL

43.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
44.

How close a measurement is to the true value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

45.
volume?
a)
48 mL
b)
48.2 mL
c)
48.25 mL
d)
4 mL
46.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
47.

Which Student is the most Precise?

a)

Alex

b)

Shandra

c)

Luis

48.
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
49.

Which of the following would best describe a situation where all measurements of a 1 gram object were off by exactly 15 grams?

a)

high accuracy, high precision

b)

low accuracy, high precision

c)

high accuracy, low precision

d)

low accuracy, low precision

50.

A substance has a mass of 400 grams and a volume of 100 mL. What is the density in g/mL?

a)

40000

b)

.25

c)

4

d)

40

51.

What can be calculated by comparing the accuracy of an experimental measurement to the accepted value?

a)

percent composition

b)

percent error

c)

percent daily value

d)

percent by mass

52.

How many sig figs allowed in the answer...Volume of a box with a length of 10 meters, width 456 meters, height 35 meters?

a)

1

b)

2

c)

3

d)

4

53.
The SI base unit of temperature
a)
kilogram
b)
meter
c)
significant figure
d)
kelvin
54.
The SI base unit for mass
a)
kilogram
b)
accuracy
c)
second
d)
liter
55.
The SI unit for length
a)
error
b)
liter
c)
meter
d)
kelvin
56.
The SI unit for time
a)
kilogram
b)
meter
c)
percent error
d)
second
57.
A systematic approach to problem solving that uses conversion factors to move from one unit to another
a)
dimensional analysis
b)
conversion factor
c)
scientific notation
d)
percent error
58.
Expresses any number as a number between 1 and 10 (known as a coefficient) multiplied by 10 raised to a power (known as an exponent). Makes it easier to write large or small quantities.
a)
significant figure
b)
scientific notation
c)
precision
d)
accuracy
59.
Refers to how close a measured value is to an accepted value
a)
base unit
b)
precision
c)
accuracy
d)
significant figure
60.
The difference between an experimental value and an accepted value
a)
graph
b)
density
c)
percent error
d)
error
61.

240 cm = ___________ m

a)

2400

b)

24

c)

2.4

d)

0.24

62.
What does the prefix milli- mean?
a)
1/100
b)
100
c)
1,000
d)
1/1,000
63.
The International System of Unites
a)
is a device used only to measure volume
b)
is used only for measuring length
c)
is based on units of 10
d)
is based on units of 12
64.
A hippo's mass would most likely be described using with units?
a)
kilometers
b)
milligrams
c)
kilograms
d)
triple beam balance
65.
To find the volume of a rock, a student submerges the rock in beaker and finds the difference between the initial volume and the final volume. What is this process called?
a)
volume by displacement
b)
volume by gravity
c)
mass by volume
d)
weight
66.
7 feet = ___ inches
a)
144 inches
b)
49 inches
c)
84 inches
d)
19 inches
67.
Which is larger: 25 inches or 2 feet?
a)
25 inches > 2 feet
b)
25 inches < 2 feet
c)
25 inches = 2 feet
68.
At field day students were competing in a relay race with a total distance of 750 meters.  There were 3 students on each relay team. How many meters did each student run? 
a)
2250 meters 
b)
750 meters
c)
250 meters
d)
2150 meters
69.
If a swimmer swam 500 meters in a race, how many kilometers did they swim? 
a)
1 km
b)
100 km
c)
1/2 km
d)
1/3 km 
70.
How are two parts of a conversion factor related?
a)
They aren't.
b)
They are equivalent.
c)
They are non-equivalent. 
71.
Which of the following is NOT a conversion factor that relates hours and minutes?
a)
1 hr/60 min
b)
60 min/1hr
c)
1 min/60 hr
72.
The average lead for a mechanical pencil is 6.0 cm long when it is new. Which conversion factor would you use to find the length in inches?
a)
2.54 cm / 1 in
b)
1 in / 2.54 cm
c)
1 in / 6.0 cm
d)
6.0 cm / 1 in
73.

Freezing point on the Fahrenheit scale is _?

a)

0

b)

32

c)

212

d)

100

74.

Freezing point of the Celsius Scale is _.

a)

100

b)

212

c)

22

d)

0

75.

Boiling point on the Fahrenheit scale is _.

a)

22

b)

32

c)

78

d)

212

76.

Room temperature on the Celsius scale is __.

a)

68

b)

0

c)

22

d)

30

77.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
78.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
79.
What is the volume of the fish?
a)

18.0 ml

b)

6.0 ml

c)

38.0 ml

80.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

81.

Calculate the density in the following question: A flower pot has a mass of 95 g and a volume of 92 mL.

a)

1.03 g/mL

b)

0.97 g/mL

c)

1.01 g/mL

d)

0.99 g/mL

82.

Jack has a pencil. It's density is 7 g/cm3 . Jack decides to cut it in half. What is the density of the pencil?

a)

3.5 g/cm3

b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
83.

Why does a hot air balloon rise?

a)

invisible aliens from another dimension trying to escape

b)

cold air is LESS DENSE than warm air

c)

the pilot uses the force

d)

hot air is LESS DENSE than cold air

84.

Convert

100oC100^oC  to Kelvin

a)

373 K373\ K  

b)

273 K273\ K  

c)

212 K212\ K  

d)

0 K0\ K  

85.

The measure of the gravitational pull on an object is called:

a)

weight

b)

mass

c)

matter

d)

volume

e)

density

86.
Suppose an astronaut were to visit a planet where the gravity is half that of Earth.  His MASS on that planet would be ______________.
a)
half his Earth mass
b)
the same as his Earth mass
c)
twice his Earth mass
d)
zero
87.
a)

Student A

b)

Student B

c)

Student C

d)

Cannot be determined

88.

Which student is the most ACCURATE?

a)

A

b)

B

c)

C

89.
Observations, like the color or texture of an object, are ________________ observations.
a)
quantitative
b)
qualitative
c)
operational
d)
scientific
90.
Which of the following is an example of quantitative data? 
a)
The color of your car
b)
A person's state of residence
c)
A person's Zip Code
d)
A Person's Height
91.

Nestor uses a thermometer to measure boiling water and finds it to be 70 degrees. But the actual boiling point is 64.7 degrees. What is Percent error?

a)

7.5%

b)

.018

c)

92.4%

d)

8.1%

92.
Which lists metric units, in order, from smallest to largest?
a)
milligram, centigram, gram
b)
kilogram, gram, centigram
c)
decagram, hectogram, milligram
d)
kilogram, hectogram, decagram
93.
What does kilo mean?
a)
thousand
b)
hundred
c)
ten
d)
ten thousand
94.
What would be the best units to use to measure the mass of an automobile?
a)
grams
b)
kilograms
c)
milligrams
d)
centigrams
95.

If a dog's food bag weighs 15 pounds and 8 ounces, and the owner feeds the dog 4 ounces of food daily, how many days will the bag last?

a)

60 days

b)

62 days

c)

64 days

d)

66 days

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