Kerjakan Soal-soal dibawah ini dengan jawaban yang tepat dan benar!
1.Apakah arti pembiasan dan berikan 4 contoh tentang pembiasan dalam keseharian!
2.Tuliskan bunyi hukum snellius 1 dan 2 !
3.Tuliska dan lukiskan 3 sinar istimewa pada lensa cembung!
4.Tuliskan rumus-rumus yang berlaku pada lensa !
5.Sebuah lensa cembung memiliki jarak fokus 20cm.jika sebuah benda di letakkan
30cm di depan lensa yang memiliki tinggi 5cm,maka tentukanlah:
a.jarak bayangan dai lensa
b.perbesaran bayangan,
c.tinggi bayangan,
d.lukiskan bayangannya dan tuliskan sifat-sifatnya!
6.Sebuah lensa cekung memiliki jarak fokus 40cm,jika sebuah benda diletakkan
60cm di depan lensa, maka berapakah jarak bayangan yang terbentuk dari
lensa?(ingat jarak fokus pada lensa cekung selalu negatif)
Selasa, 13 April 2010
Task for 8 grade (8d-8h)
1.What the defferent ofr pasive movement and active movment!
2.Mention three movement of plant! and explained!
3.Explain the meaning of hygroscopis and give one example!
4.Mention five kinds of tropism and give one example each kind of it !
5.What is the defination of nasty and mention the kind of it!
6.what the defferent of negative geotropism and positive geotropism and
give to the example
7.Why if mumica pudica plant is being touch,its leaves closed!
2.Mention three movement of plant! and explained!
3.Explain the meaning of hygroscopis and give one example!
4.Mention five kinds of tropism and give one example each kind of it !
5.What is the defination of nasty and mention the kind of it!
6.what the defferent of negative geotropism and positive geotropism and
give to the example
7.Why if mumica pudica plant is being touch,its leaves closed!
Selasa, 30 Maret 2010
Photosisthesis
Task to class VIII D - H
Exercise of photosinthesis
1.Mention the factore of photosinthesis in internal and external !
2.write down the reaction of photosinthesis !
3.Explain about the reaction of light and dark!
4.What the experiment which use the improved that the result of photosinthesis is
oksigen? and carbohidrate?
Nutrition In Plants Arist
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Exercise of photosinthesis
1.Mention the factore of photosinthesis in internal and external !
2.write down the reaction of photosinthesis !
3.Explain about the reaction of light and dark!
4.What the experiment which use the improved that the result of photosinthesis is
oksigen? and carbohidrate?
Minggu, 21 Februari 2010
Do at home for Class VIIID,E,F,G, and H.
Exercises of Chemical in food.
1.Mention four kinds of food additive substance !
2.Mention the specially uses of food additive !
3.Mention the examples of natural dyes that often used in family!
4.What is natural indicate which used to know natural dyes in food ?
5.What the colour change which your found in the meat ball is consists of artificial
preservative ?
6.Mention two preservative that forbidden used consumption !
7.What is the effect of preservative for our health ? explain !
8.What materials can be use as natural flavoring ? mention !
9.Mention four food preservation Processes !
10.What are food additives ?
1.Mention four kinds of food additive substance !
2.Mention the specially uses of food additive !
3.Mention the examples of natural dyes that often used in family!
4.What is natural indicate which used to know natural dyes in food ?
5.What the colour change which your found in the meat ball is consists of artificial
preservative ?
6.Mention two preservative that forbidden used consumption !
7.What is the effect of preservative for our health ? explain !
8.What materials can be use as natural flavoring ? mention !
9.Mention four food preservation Processes !
10.What are food additives ?
Jumat, 19 Februari 2010
Tugas dirumah untuk kelas VIII Reguler/Rsbi
Tugas dirumah untuk kelas VIII Reguler
Mata pelajaran IPA (Fisika)
1. Sebutkan sifat-sifat cahaya dan jelaskan masing-masing !
2. Sebutkan lima sifat bayangan pada cermin datar !
3. Tuliskan hukum pemantulan cahaya !
4. Tono berdiri 5 m di depan sebuah cermin datar. Jika ia bergerak 1,5 m mendekati cermin, berapakah jarak Tono dari bayangannya sekarang?
5. Tuliskan tiga sinar istimewa pada cermin cekung serta lukiskan masing-masing sinar tersebut !
6. Sebuah benda berdiri tegak pada sumbu utama sebuah cermin cekung pada jarak 25 cm, cermin menghasilkan bayangan pada jarak 40 cm dari cermin,
Hitung : a) perbesan bayangan,
b) jari-jari kelengkungan cermin.
7. Sebuah benda terletak 60 cm dari cermin cekung yang jarak fokusnya 180 cm hitung; jarak bayangan yang terjadi serta perbesarannya!
8. Sebuah benda yang tingginya 1 cm, berdiri tegak di depan cermin cekung dengan jarak 6 cm, jika jarak focus 2.5 cm, hitunglah jarak bayangan dan perbesarannya serta lukiskan bayangan benda tersebut!
Do at home for Class VIIID,E,F,G, and H.
.Exercises of Chemical in food.
1.Mention four kinds of food additive substance !
2.Mention the specially uses of food additive !
3.Mention the examples of natural dyes that often used in family!
4.What is natural indicate which used to know natural dyes in food ?
5.What the colour change which your found in the meat ball is consists of artificial
preservative ?
6.Mention two preservative that forbidden used consumption !
7.What is the effect of preservative for our health ? explain !
8.What materials can be use as natural flavoring ? mention !
9.Mention four food preservation Processes !
10.What are food additives ?
Mata pelajaran IPA (Fisika)
1. Sebutkan sifat-sifat cahaya dan jelaskan masing-masing !
2. Sebutkan lima sifat bayangan pada cermin datar !
3. Tuliskan hukum pemantulan cahaya !
4. Tono berdiri 5 m di depan sebuah cermin datar. Jika ia bergerak 1,5 m mendekati cermin, berapakah jarak Tono dari bayangannya sekarang?
5. Tuliskan tiga sinar istimewa pada cermin cekung serta lukiskan masing-masing sinar tersebut !
6. Sebuah benda berdiri tegak pada sumbu utama sebuah cermin cekung pada jarak 25 cm, cermin menghasilkan bayangan pada jarak 40 cm dari cermin,
Hitung : a) perbesan bayangan,
b) jari-jari kelengkungan cermin.
7. Sebuah benda terletak 60 cm dari cermin cekung yang jarak fokusnya 180 cm hitung; jarak bayangan yang terjadi serta perbesarannya!
8. Sebuah benda yang tingginya 1 cm, berdiri tegak di depan cermin cekung dengan jarak 6 cm, jika jarak focus 2.5 cm, hitunglah jarak bayangan dan perbesarannya serta lukiskan bayangan benda tersebut!
Do at home for Class VIIID,E,F,G, and H.
.Exercises of Chemical in food.
1.Mention four kinds of food additive substance !
2.Mention the specially uses of food additive !
3.Mention the examples of natural dyes that often used in family!
4.What is natural indicate which used to know natural dyes in food ?
5.What the colour change which your found in the meat ball is consists of artificial
preservative ?
6.Mention two preservative that forbidden used consumption !
7.What is the effect of preservative for our health ? explain !
8.What materials can be use as natural flavoring ? mention !
9.Mention four food preservation Processes !
10.What are food additives ?
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