additional measurement

Metric Units

S.I. Base Units

The International System of Units (S.I.) defines seven base units for the seven base quantities:
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alamat link measurement

Sumber link:

http://physics.nist.gov/cuu/Units/units.html

http://www.metricviews.org.uk/2007/06/07/british_cast_kilogram/

http://www.metrication.com/units/

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materi pengukuran

1. satuan suhu

Satu kelvin adalah 1/273,16 suhu titik tripel air.

2. Satuan kuat arus listrik

Satu ampere adalah arus tetap yang dipertahankan untuk tetap mengalir pada dua batang penghantar sejajar dengan panjang tak terhingga dan dengan luas penampang yang dapat diabaikan dan dipisahkan sejauh satu meter dalam vakum, yang akan menghasilkan gaya sebesar 2 x 10^-7 N m^-1

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leson plan 3

Lesson 3

Concept being taught: Water droplets collect in water sources and evaporate into the air (affected by heat, surface area, air movement and water purity), becoming water vapor
*This concept constitutes lessons 2 and 3

I. Objectives
Content: TSWBAT demonstrate and explain the process of evaporation
Skill: TSWBAT observe, experiment, and determine variables affecting evaporation

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bahan ajar measurement

MEASUREMENT

Basic competence
1.1 to describe fundamental quantities, derived quantities, and their units
1.2 to describe the definition of temperature and its measurement
1.3 to do basic measurement using familiar measuring tool in daily life.

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work sheet

? DEFINITION OF MEASUREMENT

In the past, people use their own units of measurement without egreeing with other people. For example:

Span : the distance between the spread of little finger and thumb

Palm width : the width of all fingers of hand.

Arm length : the between elbow and tip of middle finger

All these units are easy to get but they often make disputes. Why? To answer this do the following activities!

A. What you need

Hand and ruler

B. Procedures

1. make group of 4 students!
2. Each group studies the units of sapan, palm width, and arm length below.

3. Measure 3 objects in the table 1 using the units prevously writen. Put the result in table 1.
4. Repeat procedure 3 using the ruler. Record the ruselt in table 2.

C. Data observation

Table 1

Objects measured	Measurement units	Result of measurement
Length of desk Length of book Width of door	Span Palm width span	………. ………. ……….

Table 2

Objects measured	Measurement units	Result of measurement
Length of desk Length of book Width of door	cm cm cm	………. ………. ……….

5. Compare results of your groups’s meuserement with other groups!

D. Question and conclusion

1. Look at table 1!

Will you find diffrences in the results of your groups’s meuserement with the results from other groups? Why does this happens?

2. Look at table 2!

Will you find diffrences in the results of your groups’s meuserement using a ruler when you compare them with the results from other groups? Why does this happens?

3. What is needed to have same measerement?

4. From your activitied. Make summary, What is measurement?

jadwal praktikum

UJIAN PRAKTEK
MATA PELAJARAN : I P A
TAHUN PELAJARAN : 2007/2008

4. Waktu Pelaksanaan

Kelas IX A Tanggal 17 Mei 2008
Kelas IX B Tanggal 12 Mei 2008
Kelas IX C Tanggal 16 Mei 2008
Kelas IX D Tanggal 19 Mei 2008
Kelas IX E Tanggal 13 Mei 2008
III. MATERI YANG DIUJIKAN
1. F I S I K A
• Disajikan alat dan bahan, siswa dapat melakukan percobaan untuk menemukan perioda dan frekuensi suatu gerakan.
• Disajikan alat dan bahan, siswa dapat melakukan percobaan untuk menemukan letak dan sifat bayangan benda di depan lensa cembung.
• Disajikan alat dan bahan, siswa dapat melakukan percobaan untuk menemukan sifat dan jumlah bayangan.
• Siswa dapat menerapkan konsep-konsep dasar (kualitatif) dan perhitungan sederhana tentang listrik, listrik dinamis, serta penerapannya dalam kehidupan sehari-hari.
• Siswa dapat melakukan percobaan untuk menemukan hubungan antara tegangan dan kuat arus pada rangkaian dengan hambatan tetap.
Soal Ujian Praktek Terlampir
Penilaian
No. 1 2 3 4 N
Kemampuan mempersiapkan alat dan bahan Kemampuan menggunakan alat Kemampuan menyelesaikan tugas menyimpulkan Ketepatan waktu Jumlah
Nilai 4 - 9 4 -9 4 - 9 4 - 9
Nilai 4 – 5 = Kurang
7 – 8 = sedang
8 – 9 = Baik
Alat dan Bahan :

1. Kit Mekanika
2. Kit Optika
3. Kit Listrik
4. Kit Panas dan Hidrostains

Materi :

• Pengamatan telur
• Pengamatan bunga
• Pengamatan dengan menggunakan mikroskop
• Pengamatan uji makanan


(Drs. Hartono,M.Pd) (Toni Gigih Pradono , S.Pd) (Liena Andiasari, S.Si)
NIP. 131 100 197 NIP. 132203255 NIP. 510 148 360

lesson plan

LESSON PLAN

Unit : SMPN 5 Probolinggo

Grade / Term : VII / 1

Subject : SCIENCE – Physics

Topic : 1. Quantities and Their Units

Time Allocation : 40 minutes

1. Standard of Competence

To understand the scientific procedure for learning the natural objects using tools.

2. Basic Competence

1.1. To describe fundamental and derived quantities and their units.

3. Indicator to achieve Competence

1. To identify the physics quantities in daily life and then to classify them in fundamental and derived quantities.

2. To use the international units in measurements.

4. Objectives

Students are able to :

1. Identify the physics quantities in daily life and then to classify them in fundamental and derived quantities.

2. Differentiate the fundamental and derived physical quantities.

3. Mention the units of fundamental and derived physical quantities.

4. Show the derived quantity units from fundamental quantity units

5. Use the international units in measurements.

5. Subject Materials

o Measuring is to compare a physical quantity of an object with similar quantity used as a unit.

o The result measurement is useful it it uses a standard measurement.

o Quantities are everything that can be measured, has value that can be expressed by number, and has the certain units.

o The physical quantity divided into: fundamental quantities and derived quantities.

6. Learning approach and methods

1. Approach : Cooperative learning

2. Methods : Discussion, presentation.

7. Teaching – Learning Process

Phases	Activities
Opening (5 minutes)	Introduction - Show to students some examples of products - Ask students to mention some physical quantities which are labeled on the products. Motivation Can you mention physics quantities in the classroom?
Main (25 minutes)	The teacher explains the fundamental and derived quantities and their units. The teacher asks the students in a group of four to discuss and make a list of physical quantities which are used in daily life. Students are asked to classify the list into fundamental and derived quantities. Some groups are asked to deliver a presentation of the result of discussion. The other groups are asked to rise questions.

Closure (10 minutes)

The students draw conclusions guided by the teacher. The students do the post-test.

8. Learning Resources

1. Student’s book

2. References

3. Student worksheets

9. Assessment

1. Techniques : Written test , presentation

2. Instruments : Essay and scoring rubric

3. Examples of test items:

a. Written test.

Answer the questions below.

1. Explain the definition of physical quantities.

2. Physical quantities are classified into two groups those are …….

3. Explain the definition of fundamental and derived quantities.

4. Mention five fundamental quantities and their international units!

5. Area is a derived quantity. The quantity is derived from fundamental quantities of

6. Mention five derived quantities and their international units!

b. Presentations

Scoring rubric of Presentation

No	Student’s Name	Aspects
		Content	Perfor- mance	Answer’s Quality	Language Usage	Resource	Conclu- tion	Total Score
1
2
3
4
5

Notice : Score for each aspect: 5 - 10

Acknowledged by, Teacher

School Principal

Drs. HARTONO, M.Pd Toni Gigih Pradono Ali

Nip. 19610606198112 1 005 Nip. 19730421199802 1 001

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