Contoh soal muatan listrik. Sepotong emas bermassa 1 gram. Nomor atom (Z) emas adalah 79 dan nomor massa emas adalah 196,9 gram/mol. Bandingkan nomor atom dan nomor massa emas (Au) pada tabel periode unsur.
Soal-soal fisika di bawah ini merupakan soal tentang Gaya Coulomb atau Gaya Elektrostatik antar muatan listrik yang muncul dalam Ujian Nasional (UN) Fisika dalam beberapa tahun. Soal fisika di bawah ini berkaitan dengan perbandingan dua gaya coulomb dalam hubungannya dengan jarak antar dua muatan listrik dan berkaitan dengan resultan Gaya Coulomb antara beberapa muatan listrik. Pembahasan soal fisika UN tersebut di tampilkan di bagian bawah soal dalam video pembahasan fisika. Soal tentang Perbandingan Gaya Coulomb Dua buah muatan listrik identik tetapi bermuatan tidak sama diletakkan terpisah seperti gambar.
F adalah gaya elektrostatis pada kedua muatan. Jika jarak kedua muatan dijadikan 1/2 r, maka gaya elektrostatis yang bekerja pada tiap muatan adalah. Soal tentang Resultan Gaya Coulomb Perhatikan gambar di samping. Ketiga muatan listrik q₁, q, dan q₂ adalah segaris. Bila q = 5 ?C dan d = 30 cm, maka besar dan arah gaya listrik yang bekerja pada muatan q adalah.
7,5 N menuju q₁ b. 7,5 N menuju q₂ c. 15 N menuju q₁ d. 22,5 N menuju q₁ e. 22,5 N menuju q₂ 3.
Soal tentang Resultan Gaya Nol. Muatan listrik +q₁ = 10?C; +q₁ = 20?C dan q₃ terpisah seperti pada gambar di samping. Agar gaya coulomb yang bekerja di muatan q₂ = nol, maka muatan q adalah. Soal tentang Resultan Gaya Nol 'Jika diletakkan sebuah muatan sebesar +Q diantara muatan A dan muatan B, dimanakah muatan +Q harus diletakkan sehingga gaya coulomb yang dialaminya nol?' 3 cm dari muatan B b. 4 cm dari muatan B c.
5 cm dari muatan B d. 3 cm dari muatan A e. 6 cm dari muatan A 5. Soal tentang Resultan Gaya Coulomb Tiga muatan listrik A, B, dan C terletak pada posisi seperti gambar di bawah. Resultan gaya listrik yang terjadi pada muatan A adalah. 1 N Video Pembahasan Fisika - Gaya Coulomb: ©.
Choose the right answer! Zay: Hey, what are you doing? Adi: I’m for my cat.
Sunny: What will you do after graduate, Fahri? Fahri: I continue my study to a vocational school of engineering. Am going to b. Don’t The dialogue below is for the questions number 3 – 5.
Aldi: Hello, can I talk to Mr. White, please?
Secretary: Wait a minute please, I will connect you to him. Aldi: Ok, just tell him that his nephew from New York is on the line. Where does the dialogue take place? On the phone b.
In a speech c. In a meeting d. On the street 4.
Who do you think Mr. Aldi’s boss b. Aldi’s uncle c.
Aldi’s brother d. Aldi’s landlord 5.
“ from New York is on the line.” What is “on the line” means a. On a street b. On the queue c. On the phone d. On the row The following text is for the questions number 6 – 9. Edward Grimsley, the famous detectuve, was sitting in the luxurious bar car of the North American Express.
He was enjoying a glass of champagne and exchanging stories with other passangers about their favorite journeys. Grimsley always had a good time when he traveled by train. It gave him the opportunityto take it easy for a new days and not think about his work as a private eye. What is the main idea of the text? Edward Grimsley was exchanging stories with other passangers. Edward Grimsley was enjoying a glass of champagne. Edward Grimsley was sitting in the luxurious bar car.
Edward Grimsley is having a good time in the train. What is North American Express? A restaurant b. A night club 8. “ not think about his work as a private eye.” What are the underlined words mean? Police officer 9. “ it gave him the opportunity to take it easy ” The word “it” refers to a.
A glass of champagne b. Travelling by train c. Exchanging stories with other passanger d. Their favorite journey 10. Arrange these sentences to make a good paragraph! 1) The most common reason is that they want to avoid the crowd.
2) The last one is because they like the fresh air provided in the country. 3) Then, they cannot stand with the noise pollution. 4) There are some reasons why people like to live in a country. Jim: Excuse me, can you tell me is the nearest post office? Ana: Yes, you go straight for about 200 m and you will find it.
Jim: Thank you a. Arrange these words to make a good sentence. Actor (1) – to act (2) – knows (3) – good (4) – how (5) – well (6) – a (7) a. 7 – 4 – 1 – 3 – 5 – 2 – 6 b. 5 – 2 – 6 – 3 – 7 – 4 – 1 c.
7 – 4 – 1 – 5 – 3 – 2 – 6 d. 5 – 6 – 2 – 3 – 7 – 4 – 1 The advertisement below is for the questions number 13 – 15. Outrageous The outrageous patented formula is enriched with pro-vitamin B5, silk protein and moisture-binding silicone.
Gives you outrageous body! Outrageous shine! For outrageous beautiful hair.
What is the advertisement about? Body lotion advertisement b. Shampoo advertisement c. Provitamin advertisement d. Body treatment advertisement 14. Which statement is NOT TRUE according to the advertisement?
It is patented formula b. It is enriched with moisture-binding silicone c. It is enriched with provitamin d. It can make your body perfect 15. The word “enriched” has the closest meaning with a.
Substituted b. Jane: I forget to bring my homework! Amy: It’s ok. You still have 10 minutes to take it. The text below is for the questions number 17 – 18. Two weeks (17), my best friend, Kayla, suddenly announced to everyone that she hates me.
She won’t speak to me to tell me why. She has never (18) like this. She never be used to get mad at people, no matter what. I don’t know what’s wrong with her. Act The text below is for the questions number 19 – 20.
Twenty-two Your family choice cinema Saturday (March 22, 2008) Studio 1 09.00 – 11.30 a.m: Garfield 3 11.30 – 02.30 p.m: The Cursed Stone 02.30 – 05.00 p.m: Fairytale 19. What is Twenty-two?
Restaurant d. What is “The Cursed Stone”? TV Program d. Group Band Kunci Jawaban: 1.
B Text 1 Read and answer questions 21 to 23. Rearrange the following sentences into a coherent paragraph or text.
The Royal Mint makes the coins used as money. Newton joined the Royal Mint in London in 1696. Three years later he became Master of the Mint and a rich man, but he never married, and he lived simply. Two years later he was knighted Sir Isaac Newton by Queen Anne. In 1703 Newton became president of the Royal Society. He also kept up his argument with Leibniz.
For the rest of his life he was in charge of the Royal Mint. Newton was now 57 years old. Isaac Newton died in London on March 20, 1727, at the age of 85. Arrange the sentences below into a coherent paragraph. It is estimated that it has been cut off from the main land for perhaps 80 million years. It is estimated that it has been cut off from the main land for perhaps 80 million years. Madagascar is an island 250 miles off the coast of Africa.
The island today is a refuge for many forms of life that have become rare or extinct in other parts of the world. For example, up to 80 percent of Madagascar’s plant species are unique to the island. In addition, about 46 kinds of birds are found nowhere else.
Lemurs, which else where were unable to compete with their larger primate cousins, the monkeys, continue to thrive in the isolation of Madagascar. 2-1-3-4-5-6 B. 2-3-1-5-4-6 C. 2-4-5-1-6-3 D.
2-6-4-3-1-5 Kunci Jawaban: A.