ADMModule - STEM - GP12EU-Ia-4
ADMModule - STEM - GP12EU-Ia-4
ADMModule - STEM - GP12EU-Ia-4
[Type text]
HIGH SCHOOL
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General Physics1
Quarter 1 – Module 1:
Title: Measurements
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Science – Grade 12
Alternative Delivery Mode
Quarter 1 – Module 1: Measurements
First Edition, 2020
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General Physics1
Quarter 1 – Module 1:
Measurements
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Introductory Message
For the facilitator:
This learning resource hopes to engage the learners into guided and independent
learning activities at their own pace and time. Furthermore, this also aims to help
learners acquire the needed 21st century skills while taking into consideration
their needs and circumstances.
In addition to the material in the main text, you will also see this box in the body of
the module:
As a facilitator you are expected to orient the learners on how to use this module.
You also need to keep track of the learners' progress while allowing them to
manage their own learning. Furthermore, you are expected to encourage and assist
the learners as they do the tasks included in the module.
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The hand is one of the most symbolized part of the human body. It is often used to
depict skill, action and purpose. Through our hands we may learn, create and
accomplish. Hence, the hand in this learning resource signifies that you as a
learner is capable and empowered to successfully achieve the relevant
competencies and skills at your own pace and time. Your academic success lies in
your own hands!
This module was designed to provide you with fun and meaningful opportunities
for guided and independent learning at your own pace and time. You will be
enabled to process the contents of the learning resource while being an active
learner.
What I Need to Know This will give you an idea of the skills or
competencies you are expected to learn in
the module.
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1. Use the module with care. Do not put unnecessary mark/s on any part of
the module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer What I Know before moving on to the other activities
included in the module.
3. Read the instruction carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your
answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are through with it.
If you encounter any difficulty in answering the tasks in this module, do not
hesitate to consult your teacher or facilitator. Always bear in mind that you are
not alone.
We hope that through this material, you will experience meaningful learning
and gain deep understanding of the relevant competencies. You can do it!
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This module was designed and written with you in mind. It is here to help you
master the measurements. The scope of this module permits it to be used in many
different learning situations. The language used recognizes the diverse vocabulary
level of students. The lessons are arranged to follow the standard sequence of the
course. But the order in which you read them can be changed to correspond with
the textbook you are now using.
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What I Know
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper.
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper.
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9. The following observations have been made: 64.52, 3.0, 11.081. the
correctly written sum is
a. 78.6
b. 78.60
c. 78.6010
d. 79
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11. The mass of a watch glass was measured four times. The masses
were 99.997 g, 100.008 g, 100.001 g, 100.005 g. What is the average
mass of the watch glass?
a. 100.00 g c. 100.005 g
b. 100.01 g d. 100.00525 g
13. How many significant figures are in the measurement of 102 400
meters?
a. three b. four c. five d. six
a. 0.22 cm3/g
b. 4.606 g/cm3
c. 4.61 g/cm3
d. 0.217 cm3/g
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Lesson
1 Measurement
What’s In
Compare and contrast accuracy and precision; random and systematic error.
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What’s New
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What is It
So now back to the example posed in the Rounding Tutorial: Round 1000.3 to four
significant figures. 1000.3 has five significant figures (the zeros are between non-
zero digits 1 and 3, so by rule 2 above, they are significant.) We need to drop the
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final 3, and since 3 < 5, we leave the last zero alone. so 1000. is our four-
significant-figure answer. (from rules 5 and 6, we see that in order for the trailing
zeros to "count" as significant, they must be followed by a decimal. Writing just
"1000" would give us only one significant figure.)
8. For a number in scientific notation: N x 10x, all digits comprising N ARE
significant by the first 6 rules; "10" and "x" are NOT significant. 5.02 x 104 has
THREE significant figures: "5.02." "10 and "4" are not significant.
Rule 8 provides the opportunity to change the number of significant figures in a
value by manipulating its form. For example, let's try writing 1100 with THREE
significant figures. By rule 6, 1100 has TWO significant figures; its two trailing
zeros are not significant. If we add a decimal to the end, we have 1100., with FOUR
significant figures (by rule 5.) But by writing it in scientific notation: 1.10 x 103, we
create a THREE-significant-figure value.
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What’s More
1. 1.234
2. 1.2340
3. 1.234 x 10-3
4. 1.2340 x 10-3
5. 1234
6. 12340
7. 0.012340
8. 12.34
9. 123.4
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What I Can Do
Assessment
Multiple Choice. Choose the letter of the best answer. Write the chosen letter on a
separate sheet of paper.
a. 21 c. 21.26
b. 21.00 d. 21.261
a. 3.77 c. 3.8
b. 3.772 d. 4.00
a. 9.6565 c. 9.66
b. 9.6 d. 9.70
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9. The following observations have been made: 64.52, 3.0, 11.081. the
correctly written sum is
a. 78.6
b. 78.60
c. 78.6010
d. 79
11. The mass of a watch glass was measured four times. The masses
were 99.997 g, 100.008 g, 100.001 g, 100.005 g. What is the average
mass of the watch glass?
a. 100.00 g c. 100.005 g
b. 100.01 g d. 100.00525 g
13. How many significant figures are in the measurement of 102 400
meters?
a. three b. four c. five d. six
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a. 0.22 cm3/g
b. 4.606 g/cm3
c. 4.61 g/cm3
d. 0.217 cm3/g
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Additional Activities
The next station featured fifteen cards. Each card has a number that has
anywhere from one to five significant figures. Students didn't know this, but there
were three cards with one significant figure, three cards with two significant
figures, etc.
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Downloaded from
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res&sa=X&ved=2ahUKEwifxYTk7avpAhUKA4gKHf--DDoQ420oCnoECAkQKg&biw=1366&bih=608
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What I Know What's More Assessment
1. A A. 1. A
2. A 1. 4 2. A
3. B 2. 4 3. B
4. B 3. 4 4. B
5. C 4. 4 5. C
6. E 5. 4 6. E
7. E 6. 4 7. E
8. B 7. 4 8. B
9. D 8. 4 9. D
10. C 9. 4 10. C
11. A 10.4 11. A
12. C B. 12. C
13. B 13. B
1. 900 x 103
14. A 14. A
2. 3.4 x 103
15. C 15. C
3. 450 x 101
4. 8.2 x 10-1
5. 8.9 x 10-3
6. 4.5 x 103
7. 8 x 10-3
8. 5.6 x 104
9. 3.40 x 104
10.8.930 x 103
Answer Key
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References
Tabujara Jr., Geronimo D. K-12 Compliant Worktext for Senior High School
General Physics 1. Manila, Philippines: JFS Publishing Services
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