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