Ketika menyebutkan angka yang sangat amat besar seperti massa bumi, atau angka yang sangat kecil seperti massa elektron, saintis menggunakan notasi ilmiah. Format dasar notasi ilmiah adalah M * 10ⁿ Di mana M harus merupakan angka 1 sampai 10 dan n merupakan sluruh angka.

10⁰ = 1
10¹ = 10
10² = 10 * 10 = 100
10³ = 10 * 10 * 10 = 1000
10^-1 = 1 / 10 = 0.1
10^-2 = 1 / 10 / 10 = 0.01
10^-3 = 1 / 10 / 10 / 10 = 0.001

Contoh, massa bumi adalah

6,000,000,000,000,000,000,000,000 kg

Dapat dituliskan menjadi 6.0 * 10²⁴ kg.

Juga, massa elektron,

0.000000000000000000000000000000911 kg

dan dapat juga dituliskan menjadi 9.11 * 10^-31 kg.

3. Angka Penting
Angka penting menjelaskan digit valid suatu jumlah angka. Berikut merupakan rangkuman peraturan angka penting..

1. Angka bukan 0 merupakan angka penting.
2. o final setelah koma (titik desimal) merupakan angka penting.
3. o diantara angka penting (1-9) merupakan angka penting.
4. o di depan angka penting dan o pemisah koma (titik desimal) bukan angka penting.

contoh:

values	# of significant digits
5.6	2
0.012	2
0.0012003	5
0.0120	3
0.0012	2
5.60	3

Pada pertambahan dan pengurangan, bulatakan hasil dengan banyak angka di belakang koma pada bilangan yang angka di belakang komanya terkecil.
contoh:

24.686 + 2.343 + 3.21 = 30.239 = 30.24

karena 3.21 yang merupakan angka di belakang komanya tersedikit (2 angka).

Pada perkalian dan pembagian, bulatkan ke angka penting terkecil.
contoh:

45.897 *1.55 = 71.14035 = 71.1

Karena 1.55 yang merupakan angka penting terkecil, memiliki 3 angka penting.

Pada soal campuran perjumlahan, pengurangan, perkalian, pembagian, bulatkan hasil pada akhir hitungan..
contoh:

3.6*0.3+2.1 = 1.08 + 2.1 = 3.18 = 3.2

4. Grafik
Ada tiga tipe grafik persamaan matematika yang paling banyak muncul di fisika.

• Grafik persamaan linier --> y = mx + b

• 

• Grafik persamaan kuadrat --> y = kx²

• Grafik inverse --> xy = k

5. trigonometri
Trigonometri amat penting dalam fisika terutama saat mencari vektor. Ketika ada segitiga menghadap ke kanan, persamaan berikut dipakai










Nah, sekarang, bab satu sudah selesai, selamat yaaa...
Terus berlatih...
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Okeh!!

Label: belajar, fisika

hEY i'M aDZKIA
I was born on august seventeen years ago
I went to SMAN 6 Bogor since about three years ago
Most people think that I'm a freak
because I'm anti-social, social awkward, nerd alike, too conservative, etc
But, you know what?

I take those scorn as a compliment
Genius people are freak
Let's take Einstein as an example
He was forecasted to be retarded at his younger age
But look, what he found is really changing our life

And well,
Our prophet Muhammad
He brought something really new at that time
People thought he was crazy, because he taught Islam
But he kept on attempting to spread Islam and finally lightened up the world from the darkness period

So, don't be afraid to be different
Rainbow isn't beautifull if it's all black
Think out of the box Mannn!!

Oh, oh, oh

Yeah
I was a scarlet letter
And my daddy said stay away from juliet
But you were everything to me
I was begging you please don`t go

And i said
Romeo, take me somewhere we can be alone
I`ll be waiting, all there`s left to do is run
You`ll be the prince and i`ll be the princess
It`s a love story, baby, just say yes

Romeo, save me, they`re trying to tell me how to feel
This love is difficult, but it`s real
Don`t be afraid, we`ll make it out of this mess
It`s a love story, baby, just say yes

I got tired of waiting, wondering if you were ever coming around
My faith in you was fading
When i met you on the outskirts of town

And i said
Romeo save me, i`ve been feeling so alone
I keep waiting for you but you never come
Is this in my head, i don`t know what to think
He knelt to the ground and he pulled out a ring
And said

Marry me, juliet, you`ll never have to be alone
I love you and that`s all i really know
I talked to your dad, you`ll pick out a white dress
It`s a love story, baby, just say yes

Oh, oh, oh, oh

We were both young when i first saw you