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Percent Error, Scientific Notation and Significant figures

Total questions: 21

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
Refers to how close a series of measurements are to one another
a)
accuracy
b)
precision
c)
significant figure
d)
scientific notation
2.
Refers to how close a measured value is to an accepted value
a)
base unit
b)
precision
c)
accuracy
d)
significant figure
3.
The amount of mass per unit volume; a physical property
a)
conversion factor
b)
density
c)
scientific notation
d)
dimensional analysis
4.

What is the proper way to report this calculation ?

17.34 / 3.45?

a)

5.026 because the 17.34 has the most sigfigs

b)

5.03 because the 3.45 has the fewest sigfigs

c)

5.026087 because you need the most decimal places for accuracy

d)

5 because you should round the final answer to the nearest whole number

5.
Calculate the percent error for an experiment that found the density of Aluminum to be 2.56 g/mL when the known density is 2.7g/mL.
a)

5.1% error 

b)

5.19% error

c)
5.2% error
d)

5.0% error

6.

You know that 12 inches = 1 foot. Convert 60 inches to feet.

a)

720 feet

b)

5 feet

c)

5 inches

d)

72 feet

7.

Americans drink 5,604,000 gallons of sweet tea each day. How many liters is that? (1 gal = 3.79 L) Leave answer to 4 significant figures.

a)

21,200,000 L

b)

21,240,000 L

c)

21,239160

d)

21,000,000 L

8.

How many miles will a person run during a 10.0 km race? (0.621 mi = 1.00 km)

a)

16.1 mi

b)

6.21 mi

c)

0.0621 mi

d)

6 mi

9.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
10.

This bullseye demonstrates...

a)

High Accuracy & High Precision

b)

High Accuracy & Low Precision

c)

Low Accuracy & High Precision

d)

Low Accuracy & Low Precision

11.

A student's measured length during a science experiment was 12.00 cm. The actual size was 14.25 cm.


What was the percent error?


*Hint: You now know how to calculate error, and you should know how to calculate a percent, so put the two together to find this answer.

a)

15.79%

b)

18.80%

c)

15.78%

12.

Describe the accuracy and precision of the image

a)

Very accurate and somewhat precise

b)

Very accurate but not precise at all

c)

Not accurate at all but very precise

d)

not accurate and not very precise

13.

A set of data are all close in value to each other, but they are not close to the actual value. This set of data can be described as _________________.

a)

precise

b)

accurate

14.
Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?
a)
35%
b)
67%
c)
85%
d)
92%
15.
The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?
a)
21%
b)
17.37%
c)
17.4%
d)
21.02%
16.
Solve:
(6.0 x 104) + (3.0 x 104)
a)
9.0 x 104
b)
3.0 x 104
c)
9.0 x 108
d)
3.0 x 100
17.
Solve:
(8.0 x 10^22) - (7.0 x 10^22)
a)
15 x 10^22
b)
1 x 10^0
c)
1.5 x 10^23
d)
1 x 10^22
18.
Solve:
(7 x 10^15) + (5 x 10^15)
a)
12 x 10^30
b)
1.2 x 10^15
c)
1.2 x 10^14
d)
1.2 x 10^16
19.
Solve:
(6 x 10^45) x (5 x 10^2)
a)
1.1 x 10^47
b)
1.1 x 10^90
c)
3.0 x 10^47
d)
3.0 x 10^48
20.
Solve:
(3.2 x 10^16) x (4 x 10^16)
a)
1.28 x 10^33
b)
1.28 x 10^32
c)
1.28 x 10^16
d)
7.2 x 10^16
21.
Solve:
(20 x 10^50) / (4 x 10^15)
a)
2.4 x 10^51
b)
5 x 10^65
c)
8 x 10^66
d)
5 x 10^35