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Klik Disini untuk Mendownload : Momentum Linear Selengkapnya...
Selamat datang di PR-Sekolah - Solusi Pas Pelajar Cerdas.Kalian bisa mendapatkan Artikel, Animasi, Software hingga Berita Pendidikan disini khusus buat kamu.Ada juga Rubrik Techno, Dunia Islam, juga Hiburan.Special for you by PR-Sekolah !
Disini kalian bisa mendownload animasi dan software untuk kegiatan belajar dan mengajar secara cuma-cuma. Animasi disini dibuat oleh Pustekkom maupun oleh pembuat yang lainnya. Software pendidikan ini meliputi software untuk pelajaran IPA (Kimia, Fisika, Biologi) dan Matematika.
Kalian bisa mengetahui tentang kabar terkini dari dunia pendidikan di Indonesia, mulai dari berita untuk siswa hingga para guru yang dihimpun dari pewarta berita terkemuka. Jangan sampai kalian tidak mengetahui dunia pendidikan negeri sendiri ya!
Kalan bisa merequest tugas dan keinginan disini yang masih meliputi tentang pendidikan, pelajaran, artikel dan teknologi. Sebisa dan secepat mungkin PRSekolah akan memproses dan menayangkan request kalian, para pelajar cerdas !
Dengarkan Music Meditation yang berada di sebelah kanan dan relaksasikan diri kalian untuk dapat meningkatkan konsentrasi dan kenyamanan untuk belajar. Belajarlah dengan Cerdas, bukan dengan Keras. Belajarlah dengan Cermat, bukan dengan Giat!
Ada beberapa adverb yang bentuknya sama seperti adjective, seperti hard, fast, dan late. Lantas bagaimanakah cara membedakan jenis kata tersebut dalam kalimat?
Caranya mudah saja. Jika kata tersebut berfungsi menjelaskan nomina, maka kata tersebut berfungsi sebagai adjective. Dan jika kata tersebut menjelaskan verba, maka ia berfungsi sebagai adverb.
Perhatikanlah contoh kalimat di bawah ini!
a. He is a hard worker.
b. He works hard.
Kata hard pada contoh a berfungsi sebagai adjective. Mengapa? Karena ia berfungsi menjelaskan nomina worker. Sedangkan pada contoh b, kata hard berfungsi sebagai adverb yang menjelaskan verba work.
Sekarang bisakah Anda membedakan fungsi kata fast dan late pada contoh-contoh di bawah ini?
a. That is a fast train.
b. Budi runs very fast.
a. Donny is a late sleeper.
b. Tommy always comes late.
Selengkapnya...
Simple Past Tense digunakan untuk mengungkapkan suatu kegiatan atau peristiwa yang terjadi di waktu lampau.
Keterangan waktu (adverb of time) yang dapat digunakan antara lain adalah:
yesterday : kemarin
last night : semalam
last week : minggu lalu
last month : bulan lalu
last year : tahun lalu
two days ago : dua hari yang lalu
a week ago : seminggu yang lalu
Positive Sentence
Rumus:
S + V2
Verba kedua (V2) ada dua macam, yaitu:
Contoh kalimat:
They played basketball yesterday.
= Mereka bermain bola basket kemarin.
Played adalah verba kedua dari play. (Regular Verb)
She wrote a letter last night.
= Ia menulis
Wrote adalah verba kedua dari write. (Irregular Verb)
Negative Sentence
Rumus:
S + did not + V1
Contoh kalimat:
They did not (didn’t) play basketball yesterday.
= Mereka tidak bermain bola basket kemarin.
She didn’t write a letter last night.
= Ia tidak menulis
Interrogative Sentence
Rumus:
Did + S + V1
Contoh kalimat:
Did they play basketball yesterday?
= Apakah mereka bermain bola basket kemarin?
Did she write a letter last night?
= Apakah ia menulis
To infinitive artinya verba bentuk asal yang diberikan to di depannya, misalnya, to go, to study, to swim, to write, atau to wear.
Beberapa verba yang dapat diikuti oleh to infinitive adalah sebagai berikut:
advise : menasehati
allow : mengizinkan
agree : setuju
ask : meminta, menyuruh
beg: memohon
command : memerintahkan
compel : memaksa, mendorong
decide : memutuskan
encourage : mendorong, memberi semangat
expect : mengharapkan
forbid : melarang
force : memaksa
hope : berharap
instruct : memerintahkan
intend : bermaksud
invite : mengundang, mengajak
oblige : mewajibkan, mengharuskan
offer : menawarkan
order : memerintahkan
plan : berencana, merencanakan
pretend : berpura-pura
promise : berjanji
refuse : menolak
tend : cenderung
want : ingin
warn : memperingatkan
Di antara verba-verba itu ada yang dapat langsung diikuti oleh to infinitive dan ada juga yang didahului oleh objek (nomina/pronomina).
S + V + to infinitive
Contoh:
I want to study English.
= Saya ingin belajar bahasa Inggris.
He refused to go.
= Ia menolak pergi.
S + V + O + to infinitive
Contoh:
I want you to study now.
= Saya ingin kamu belajar sekarang.
The doctor advised him to stop smoking.
= Dokter menasehatinya untuk berhenti merokok.
She invited me to come to her house for dinner tonight.
= Ia mengundang saya datang ke rumahnya untuk makan malam nanti malam.
Selengkapnya...
main clause : past future perfect (S + would have + V3)
Conditional sentence type 3 ini digunakan untuk menyatakan suatu syarat yang tidak mungkin lagi dipenuhi karena waktunya telah berlalu. Dengan kata lain, kenyataan bertentangan/berlawanan dengan keadaan di masa lampau.
Contoh:
If I had studied hard, I would have passed the exam.
(Real fact : I didn’t study hard, so I didn’t pass the exam.
Atau, I didn’t pass the exam because I didn’t study hard.)
I would have come to your house if the weather had been fine.
(Real fact : The weather wasn’t fine, so I didn’t come to your house.
Atau, I didn’t come to your house because the weather wasn’t fine.)
Selengkapnya...if clause : simple past tense
main clause : past future tense (S + would + V1)
Tipe ini digunakan untuk menyatakan suatu tindakan/keadaan yang berlawanan/ bertentangan dengan kenyataan pada saat ini. Sebenarnya syarat dalam if-clause bisa saja terpenuhi, tetapi kemungkinannya sangat kecil.
Contoh:
If you studied hard, you would pass the exam.
(Real fact : You don’t study hard.)
If I had a lot of money, I would lend you some.
(Real fact : I don’t have much money.)
Would bisa juga diganti dengan could atau might.
Contoh:
You might be successful if you tried harder.
If I had some information, I could let you know.
Selengkapnya...If I have a lot of money, I will buy a new car.
You’ll pass the exams if you study hard.
Kedua contoh kalimat di atas dalam tata bahasa disebut conditional sentences (kalimat pengandaian). Conditional sentences terdiri dari dua bagian, yaitu subordinate clause (if-clause) yang merupakan pernyataan syarat dan main clause yang merupakan akibat terpenuhi atau tidaknya syarat yang terkandung dalam subordinate clause.
Conditional sentences ada tiga jenis. Berikut ini akan kita bahas satu-persatu :
if clause : simple present tense
main clause : simple future tense
Pada tipe 1 ini suatu tindakan dalam main clause akan terjadi bila syarat dalam if-clause terpenuhi.
Contoh:
If I have a lot of money, I will buy a new car.
You will master English if you study hard.
Sebagai subjunctive, kata wish ini dapat digunakan untuk menyatakan suatu keinginan atau harapan yang tidak terpenuhi.
| S + wish + that* + past tense |
| S + wish + that* + past perfect tense |
* that dapat dihilangkan.
Contoh:
I wish I had a lot of money.
(Real fact : I don’t have much money.)
I wish he could help you.
(Real fact : He can’t help you.)
He wished he had told me the truth.
(Real fact : He didn’t tell me the truth.)
Sasongko wished he hadn’t met any obstacles.
(Real fact : He met some obstacles.)
Selengkapnya...Pemakaian If only sama seperti wish. Bedanya adalah kalimat yang menggunakan If only terkesan lebih dramatis.
| If only + past tense |
| If only + past perfect tense |
Contoh:
If only I were a pilot!
(Real fact : I’m not a pilot.)
If only you could tell me the answer!
(Real fact : You can’t tell me the answer.)
If only I had studied seriously!
(Real fact : I didn’t study seriously.)
If only he hadn’t told a lie!
(Real fact : He told a lie.)
Catatan:
Untuk subjunctive dengan Simple Past Tense, semua subjek menggunakan to be "were". Selengkapnya...Kedua frasa ini dalam bahasa Indonesia mempunyai arti yang sama, yaitu seolah-olah atau seakan-akan. Penggunaannya pun tidak memiliki perbedaan. Jadi, keduanya bisa saling menggantikan.
as if/as though + past tense |
as if/as though + past perfect tense |
As if/as though diikuti past tense untuk menunjukkan suatu keadaan yang berlawanan/bertentangan dengan kenyataan sekarang. Sedangkan untuk menyatakan suatu keadaan yang berlawanan dengan kenyataan di waktu lampau, past perfect tense digunakan.
Contoh:
He acts as if he were a rich man.
(Real fact : He isn’t a rich man.)
You talk as though you knew everything.
(Real fact : You don’t know everything.)
Rina talked as if she had mastered the topic.
(Real fact : She didn’t master the topic.)
He behaved as though he had been possessed.
(Real fact : He wasn’t possessed.)
Catatan:
Sebagai subjunctive, ungkapan ini dipergunakan untuk menyatakan suatu preference, yaitu subjek pertama lebih suka subjek kedua untuk melakukan/tidak melakukan sesuatu, namun keinginan itu tidak terpenuhi.
| S1 + would rather + that* + S2 + past tense |
| S1 + would rather + that* + S2 + past perfect tense |
* that dapat dihilangkan.
Contoh:
I would rather that he studied hard.
(Real fact : He doesn’t study hard.)
I would rather you helped her.
(Real fact : You don’t help her.)
I would rather they had played well.
(Real fact : They didn’t play well.)
I would rather Heru hadn’t done such a silly thing.
(Real fact : Heru did such a silly thing.)
Selengkapnya...Present Perfect Continuous Tense digunakan untuk mengungkapkan suatu kegiatan/peristiwa yang telah dimulai di waktu lampau dan sekarang masih berlangsung dan akan tetap berlangsung.
Kalimat Positif
| S(I/You/We/They) + have + been + V1 + ing |
| S(He/She/It) + has + been + V1 + ing |
Contoh:
They have been studying English for 5 years.
She has been teaching English since 1997.
John has been staying in
Kalimat Negatif
| S(I/You/We/They) + have + not + been + V1 +ing |
| S(He/She/It) + has + not + been + V1 + ing |
Contoh:
They haven’t been studying English for 5 years.
She hasn’t been teaching English since 1997.
John hasn’t been staying in
Kalimat Interogatif
| Have + S(I/You/We/They) + been + V1 + ing |
| Has + S(He/She/It) + been + V1 + ing |
Contoh:
Have they been studying English for 5 years?
Yes, they have. / No, they haven’t.
Has she been teaching English since 1997?
Yes, she has. / No, she hasn’t.
Has John been staying in
Yes, he has. / No, he hasn’t.
Selengkapnya...A T O M
An atom is invisible, much tinier than a minute
Yet atoms make up the world and everything in it
A cloud of electrons so swift and intense
Surrounding a nucleus tiny and dense
Deep down at the center of it all
A nucleus—extremely very small
M O L E
A mole is a particular amount
Of substance in its formula weight
Expressed in grams with Avogadro’s count
Of units making up the aggregate
A mole is a specific quantity
Its volume measures twenty-two point four
In liters for a gas at STP
A mole is a counting unit, nothing more
p H
For coffee it’s five and for tomatoes it’s four
While household ammonia’s eleven or more
It’s seven for water if in a pure state
But rainwater’s six and seawater’s eight
It’s basic at ten, quite acidic at two
And well above seven when litmus turns blue
C a C O 3
The Taj Mahal in its solemn majesty
Gibraltar’s famous rock with stability
Australia’s Barrier Reef that spans the Coral sea
The Roman Colosseum with its savage history
The enigmatic Pyramids enduring silently
The formula, in every case, is CaCO3
S A L T
If a soluble salt you wish to provide
You firstly on the acid must settle
Then neutralize with the proper oxide
Hydroxide, carbonate or metal
But if the salt does not dissolve
A simpler means you must try
Precipitate it, you resolve
Then filter it, wash and dry
I’M ELECTRON
I’m a jolly electron, alternately bound and free
Spin from morning to night although you can’t see
And this the burden song forever used to be
I care for nobody since nobody cares for me
Though William Crookes suspected my presence on this earth
It was J.J.Thomson that found me in spite of my tiny girth
He measured the ‘e by m’ of my electric worth
I love J.J. in a filial way for he’d given me birth
Johnstone Stoney invented my new electric name
Ernest Rutherford and Niels Bohr then brought me fame
They guessed within the atom my inner and outer game
You’ll agree what they did for me, I’ll do it for them the same
Selengkapnya...
The Museum National is located on the side of Merdeka Square or Lapangan Merdeka and was uilt in 1862 at that time Dutch colonial administration realized about the great treasure of Indonesian cultural heritages and long history of Indonesia. The biggest surprised for the Western historians was the fact that historical record in Indonesia showing tremendous level of similarities with those in India, India and Asia mainland in general. The elements of India is the most interesting aspect at one side and the fact of Indonesian ethnography. All these facts had invited various experts to study Indonesia in more intensive and extensive effort. In the field of history the archaeologists, paleontologists, epigraphists, linguistic, paleographic and ceramologists have dedicated themselves for the light of Indonesian history, educated local student to understand their culture which had been a great historians such as Prof. Dr. Poerbatjaraka, Prof. Wiryosuparto, Prof Soekarto, Prof. Soekmono, Prof. I.B. Mantra and many others. In the field of Anthropology even more expert were born, although it is much later such as Prof. Koentjaraningrat.
Taman Ismail Marzuki is Jakarta's showcase in cultural performances. As it is well known Java island including west Java which is called Sunda had strongly influenced by the Hindu tradition in the past. The Hndu tradition, especially initiated by the palaces, were various entertainments developed from local existing dance, drama, and musics with theme of Hindu tradition from India. Ancient Hindu writers in the past also choreographed local theme into the theme of a performances. That is why today both in Jaka and Bali we can watch a drama of wayang puppet shows with a theme both taken from India epic of Ramayana or Mahabharata or local kings in Java or Bali. The artists both in Java and Bali seen to have been free in expressing their emotion and as an art improvisations, taking many events to be included in the chain of their playing. Although it is a traditional performance a modern and actual issues is often appointed into their theme, also it is not into the main theme, or as just for satires Taman Ismail Marzuki organizes almost every night performances from Balinese dances, poetry readings or declamations, traditional musics or gamelan and modern film festivals. The building is located at Jalan Cikini Raya, phone 021 315 4067. Normally their programs are published by the Jakarta Post daily news. Although some groups or small number of people do not like art and consider art is taboo, but the heart of Indonesian people, especially Java could not be avoided form their very basic feeling of life that art can not be separated with all aspect of life which is proved by technologically advanced countries that art has beeen playing a great role in making their creation win over all their competitors. A small number of people do not like art by blaming that art would make the people open to the free sex and other relational affairs is not based on real fact, and if we see the life of such people even they worse in their field of porn, only they try to hide behind some doctrine. As long as history reveals life without art is barren, and make the nature drainaged out of fertilizer and become barren like the sanvannah.
Sinopsis film :
Nim (Abigail Breslin) harus kehilangan ibunya saat seekor ikan paus menyeret ibu Nim ke dasar laut. Ibu Nim adalah seorang ahli biologi laut yang sedang menyelidiki kehidupan ikan paus saat sebuah kapal bernama The Buccaneer berlayar terlalu dekat dengan ikan paus yang kemudian panik dan menyeret ibu Nim ke dasar laut.
Jack (Gerard Butler), ayah Nim, yang merasa kehilangan kemudian mengajak Nim untuk berlayar mengelilingi dunia untuk mencari ibu Nim. Sayangnya mereka berdua malah terdampar di sebuah pulau tak berpenghuni. Mereka berdua kemudian memutuskan tinggal di pulau itu untuk selamanya.
Jack yang juga seorang ahli biologi laut kemudian mulai meneliti kehidupan biota di sekitar pulau itu. Hasil penelitian Jack bahkan sempat dimuat di majalah National Geographic. Selama bertahun-tahun Jack dan Nim tinggal sendirian di pulau itu. Satu-satunya hubungan dengan dunia luar adalah kapal pengangkut barang yang sering singgah dan membawakan mereka beberapa barang keperluan mereka.
Dari kapal inilah Nim kemudian mendapat novel berjudul My Arabian Adventure karya penulis terkenal Alexandra Rover (Jodi Foster) . Dalam novel-novelnya Alexandra selalu berkisah tentang petualangan-petualangan yang menegangkan padahal Alexandra sendiri adalah seorang yang sangat tertutup. Ia bahkan tak pernah keluar dari apartemen tempat ia tinggal.
Suatu ketika Jack berencana untuk mengajak Nim berlayar untuk meneliti kehidupan biota di tengah laut namun Nim merasa keberatan. Jack kemudian berangkat sendiri dan berjanji akan kembali dalam 2 hari. Sayangnya sebuah badai kemudian menghambat kepulangan Jack.
Di saat yang sama, Alexandra yang sedang mengalami kesulitan melanjutkan novelnya menemukan artikel tentang Jack yang tinggal di sebuah pulau terpencil. Alexandra kemudian menghubungi Jack lewat email untuk mencari inspirasi buat novelnya.
Nim yang tinggal sendirian di pulau menunggu ayahnya pulang kemudian membaca email Alexandra dan menjalin hubungan dengan penulis idolanya tersebut. Merasa khawatir dengan keselamatan ayahnya, Nim kemudian minta bantuan Alexandra untuk menyelamatkan ayahnya. Nim mengira bahwa Alexandra adalah seorang pahlawan seperti tokoh-tokoh yang ia gambarkan dalam novelnya.
| Abigail Breslin | ... | Nim Rusoe | |
| Jodie Foster | ... | Alexandra Rover | |
| Gerard Butler | ... | Jack Rusoe / Alex Rover | |
| Michael Carman | ... | Captain | |
| Mark Brady | ... | Purser | |
| Anthony Simcoe | ... | First Mate | |
| Christopher Baker | ... | Ensign | |
| Peter Callan | ... | Edmund's Father | |
| Rhonda Doyle | ... | Edmund's Mother | |
| Russell Butler | ... | Old Fisherman | |
| Colin Gibson | ... | Cruise Director | |
| Bryan Probets | ... | Australian Tourist #1 | |
| Andrew Nason | ... | Australian Tourist #1 | |
| Dorothy Thorsen | ... | Blue-Haired Woman | |
| Penny Everingham | ... | Older Woman Tourist |
PR Sekolah said :Please, i just help you. Use your own word and imagination. Remember that, if you ignore it, i think the teacher would be know. Thanks!
It's the ultimate prank using the simplest of props... a plastic soda bottle filled with water. Even though the words, "DO NOT OPEN" are printed on the bottle, people just can't resist the temptation. Watch out, the fun is just beginning.
Hey, if you're a kid who is trying to do this experiment, get an adult to help you poke the holes in the bottle. You don't want to hurt YOUR hand!
Experiment
The "Do Not Open" Bottle Trick
Amuse the neighbors for hours as you make objects floating in mid-air. Believe it or not, the secret to this mystery of levitation is right in front of your nose.
Flying Toilet Paper! Just hold a roll of toilet paper in the stream of air and watch the paper take off! Be sure to hold the toilet paper roll on a long stick (piece of dowel) in order for it to spin fast and unroll the paper. Always conclude this demo with a thanks to Bernoulli (see below if you don't get it).
Here's a classic science experiment that is more than a hundred years old and is guaranteed to fool your friends. The original demonstration used a hard-boiled egg and a milk bottle.
WARNING: This experiment requires the help of an adult partner. Don't just pick any adult... try to find a smart one!
Once you get the balloon in the bottle, how are you going to get it back out? Here's our answer!
Try it with an egg!
Just repeat the steps above substituting a hardboiled egg for the water balloon. The trick here is to find an egg that is just a little bigger than the mouth of the bottle - I prefer medium size eggs. The other little secret is to grease the mouth of the bottle with a vegetable oil so the egg slides right in!
Remember this: When molecules of air heat up, they move far away from each other and take up more space. When molecules of air cool down, they move closer together and take up less space. Now, the challenge is to get the balloon out of the bottle. Use what you have learned about air and air pressure to come up with a way to get the balloon back out. Hint: Try sneaking a straw along side the balloon when you pull it out. If the outside air can get inside the bottle, the water balloon will come out!
