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“Di film, ada bagian dimana aku memberitahu Bong Min-Jung ‘Masa lalu ku benar-benar berat. Aku tidak mau hidup seperti itu lagi. Hidupku yang sekarang sudah baik-baik saja sekarang.’ Ini bukanlah adegan yang membutuhkan banyak emosi, dan aku tidak haru menangis tetapi tertanya aku menangis. Bagian itu dipakai pada film tetapi bukan pada skenario yang asli. Ada banyak kisah pre-debut yang tidak bisa aku ceritakan. Mungkin itulah yang membuat air mataku menetes.“
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“In the early days we gave employees iPhones primarily,” a Facebook spokesperson tells me. That decision and the rise of Android has left Facebook scrambling to get employees dogfooding its apps for Google’s OS. Now the company’s headquarters is plastered with these eye-popping posters asking Facebookers to “switch today”, and fix Android flaws with its secret bug reporting tool “Rage Shake”.
Facebook is making a shift. Not just to mobile, but to a balanced focus across mobile through an informal program to nudge employees to Android. It was first mentioned by Business Insider’s Owen Thomas in August and I’ve since investigated. The campaign casually known as “Droidfooding”, a portmanteau of Android and dogfooding — eating your own dogfood aka testing your own products.
I’ve attained some photos of the vaguely propagandistic posters found around Facebook’s Menlo Park campus. The most telling one is a graph of the International Data Corporation’s…
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Regardless of your views on our recent election, one thing that we can generally agree on is that our political system is broken. There are myriad contributors to our malaise, not the least of which is the voting system on which it’s all based. But apart from the intractable structural problems, there is one area that we in the web world are tantalizingly close to ameliorating: constituent opinion.
In the middle of February in Wisconsin, nearly 100,000 people, some driving hundreds of miles, all converged on the same location at the same time simply to convey information. These people didn’t want to be there, but they felt, rightly, that this…
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Cars Should Be Banned In The City
Cars should be banned in the city. As we all know, cars create pollution, and cause a lot of road deaths and other accidents.
Firstly, cars, as we all know contribute the most of pollution in the world. Cars emit a deadly gas causes illnesses such as bronchitis, lung cancer, and trigger of asthma. Some of these illness are so bad that people can die from them.
Secondly, the city is very busy. Pedestrians wander every where and cars commonly hit pedestrians in the city, which causes them to die. Cars today are our roads biggest killers.
Thirdly, cars are very noisy. If you live in the city, you may find it hard to sleep at night, or concentrate in your homework, and especially talk to someone.
In conclusion, cars should be banned from the city for the reasons listed.
1. What type of the text above?
2. What one of the diseases caused by pollution?
a. HIV / AIDS
3. What tense is mostly used in the text?
a. Past tense
b. Simple present tense
c. Simple perfect tense
d. Present continuous tense
e. Past continuous tense
4. We usually call the last paragraph as………
5. What is the purpose of the text?
a. to persuade reader about the Cars Should Be Banned In The City
b. to explain the characteristics the Cars Should Be Banned In The City
c. to inform readers about Cars Should Be Banned In The City
d. to describe Cars Should Be Banned In The City
e. to entertain readers about Cars Should Be Banned In The City
6. The following sentences are true, except …
a. the cars contribute the most of pollution in the world.
b. the cars are very noisy.
c. the cars can also cause many deaths and other road accidents.
d. the car cans accelerate the transport.
e. the cars today are our roads biggest killers.
7. What the title text above?
a. Cars Should Be Banned In The City
b. Cars cause pollution.
c. Car giant killer street.
d. Car facilitate transportation.
e. Cars cause noise of the city.
8. Which paragraph is called arguments?
a. I and II.
c. All paragraph
d. II, III, and III
e. I and IV
9. Is the car also cause pollution?
b. No, he is.
c. Yes, it’s
e. No, it’s not.
10. Is the car also cause noise?
a. Yes, it’s.
b. No, it’s
d. Yes, he is.
e. No, it’s not.
Elephants: The Amazing Animals
Elephants are the largest land animals on earth. They have the largest brains of
any mammal. Elephants talk to each other. Researchers have discovered
more than 50 different types of calls that they use to communicate with each other.
Their trunks are strong enough to pick up trees but sensitive enough to pick up
flowers They use them as tools to sweep paths, to scratch themselves,
to swat flies, and to draw in the dir They are good swimmers and use
their trunks like snorkels. They live together in family groups. They help
each other when in trouble. They join together to care for and rescue their young.
1. What does the text tell us about?
a. amazing animal b. elephants c. researchers
2. What is the main idea of the paragraph?
a. Elephants have largest brain
b. Elephants are the largest animals
c. Elephants has 50 differents types
d. Elephants are good awimmwera
3. The elephants part of the body that is described in the text …
a. head c. tusk
b. ears d. trunks
4. Which of the following descriptions is not correct?
a. Elephants can’t take flowers.
b. They can communicate well with their babies.
c. They are cooperative among others.
5. How do they sweep paths?
a. its feet c. its trunks
b. its head d. its brain
7. “They use them …”
Them refers to …
a. elephants b. flowers c. trunks d. esearcher
8. They talk each other the other word of talk is …
a. communicate b. help c. join d. rescue
9. “… to care for and rescue their …”
The closest synonim of the word “rescue” is …
a. bring b. feed c. save d. eat
10. “Researchers have discovered more than….”
The underlined word has the same meaning as ….
a. looked for b. got c. searched d. found
Gorillas are the largest of all the primates. A male gorilla can be 180 centimeters
tall and can weigh 200 kilograms. Gorillas are very strong but they do not
often fight. In fact they are peaceful animals. Gorillas live in small family groups of
about 15. In a group there is one strong, older male, some young males, and
a few females with their babies. They move slowly around a large area of jungle
eating leaves and bushes.
In some ways gorillas are very like humans. When they are happy,
they laugh and wave their arms. When they are angry, they beat their chests.
When they are sad, they cry. But they cry quietly, without any tears.
Unfortunately, people hunt and kill gorillas. They also cut down and burn their trees.
There are now only about 10,000 gorillas left in the world.
1. How tall can gorillas be?
a. one hundred and eighteen c. eighteen hundred
b. one hundred eighty d. two hundred
2. What is thepurpose of the text above?
a. to retell about gorillas c. to entertain the gorillas
b. to explain gorillas d. to describe gorillas
3. What does paragraph 1 tell us about?
a. The size of gorillas c. The largest gorillas
b. The strenght of gorillas d. The habitat of gorillas
4. The main idea of the second paragraph is ….
a. There are only about 10,000 gorillas in the world
b. People hunt and kill gorillas
c. Gorillas are like human
d. When gorillas sad, they cry
5. How do gorillas live?
They live …
a. alone b. in group c. peacefully d. nomad
6. “They also cut down and burn …”
“They” here refers to ….
a. gorillas b. people c. humans d. females
The Sumatran rhinoceros (Dicerorhinus sumatrensis) is the smallest
rhino species. It is also the most distinctive rhinoceros. It has been hunted
a lot that it is almost extinct. There are less than 300 Sumatran rhinoceroses
surviving in Malaysia and Indonesia. Between 1985 and 1995, the number
of Sumatran rhinos declined by 50 percent because of poaching and habitat d
The Sumatran rhinoceros has unique grey or reddish-brown coat. It is
believed to be the only survivor of the lineage that included the woolly rhinoceros.
Sumatran rhinos stand up to 1.4 m (4.6 ft) at the shoulder and weigh
up to 1,000 kg (2,200 lb). They have folded skin, like the other Asian rhinos,
except that it is covered with coarse, bristly hair. The Sumatran is the only rhino
in Asia with two horns. The front horn is usually the longest, reaching a length
of 90 cm (36 inch), and the rear one is sometimes so small that the animal
looks as if it is single-horned.
They live mainly in forest-covered hills near water and are known to be
good at climbing slopes and swimming. They move mainly at night, and spend
most of the day wallowing in mud-holes and pools. Sumatran rhinoceroses
usually feed on leaves, twigs, and fruits.
Female rhinos reach sexual maturity at about the age of five or six.
The males mature between the ages of seven and eight. However, they
do not father calves until they have claimed a territory, which may take
them three or four years. Rhinos always have a single calf, born after a gestation
period of 15 to 18 months. The calf may feed on its mother’s milk for up to
two years, and it usually remains with its mother until she is about to give birth
once more. The calf is only raised by its mother.
1. What does the first paragraph tell us about?
a. the description of sumatran rhinos c. The number of Sumatran rhino
b. The habitat of Sumatran rhino d. The destrucyion of habitat
2. Paragraph 3 mainly tells us about …of the Sumatran rhino
a. habit b. food c.habitat d. life
3. Why is the sumatran rhinos almost extinct?
a. people lokk after them c. people feed them
b. people hunt tthem d. people save them
4. The following is true based on the text?
a. There are a large number Sumatran rhinos
b. Female rhino has folded skin
c. Sunatran rhinos only live in Indonesia
d. Sunatran rhinos live in open forest
5. How tall is the sumatran rhino?
a. 40 cm b. 140 m c. 50 sm d. 14 cm
6. “….the rear one is ….”
“one” refers to ….
a. rhino b. horn c. length d. animal
7. “… the rear one is …”
The underlined word hs similar meaning as …
a. front b. small c. single
Kajanthini Selvrasa never imagined that on the very day she planned to be married in Sri Lanka she would be dealing with two deaths, and then he news of her grieving mother and father might not be free to return with her to Canada, fir they lost their passport.
“you have two deaths in your family and this is how you are treated,” the exhausted Selvrasa, who lost her aunt and grandmother, murmured in her family’s home in Colombo.
Selvrasa, 23, of Mississauga and her fiancé, Benjamin Yogarajah, 28, of North York, had traveled with her parents to Sri Langka for their wedding on the 29 the of December. Her parents, Sri Langka nationals who have lived in Toronto as landed immigrants for more than a decade, lost all their identification when the waves hit her grandmother’s home.
The Canadian high commission in Colombo told them they must reapply for the documents before they can come back.
“I know they have a lot to deal with,” said Yogarajah to Selvrasa.
“Yeah…” replied the hopeless Selvrasa.
Selvrasa’s grandmother, Rasanayagam Algaratnam, her aunt, Jayarannee Puvipal, and Puvipal’s husband and their three children were inside Algaratnam’s house when the surging water advanced on the home.
Puvipal’s husband scooped up one of their three children and ran, while a neighbour carried a second to safety. But, a 9-year-old remained whit algaratnam and Puvipal, who were searching for the family’s passports when the water reached them. The boy was pushed the water’s force to the ceiling, where he clung, frightened and bleeding, as the women were engulfed, frightened and bleeding, as the women were engulfed.
Their bodies were recovered, but only after thieves had stripped puvipal’s battered body of the wedding jewellery.
1. The teacher told the students that they needed to revise their essays.
The passive of the underlined clause is:
a. Their essays were needed to revise.
b. their essays were need to be revising.
c. Their essays were needed to be revised.
d. Their essays needed to be revised.
e. Their essays were needed to revising.
2. Tono wasn’t offered the job.
We can also say:
a. Tono didn’t offer the job.
b. They don’t offer the job to Tono.
c. Tono was offering the job.
d. They were offering Tono the job.
e. The job wasn’t offered to Tono.
3. “Which paintings will be exhibited tomorrow?”
“We don’t know yet. They …………………. by a team.”
a. are still being selected
b. are still selecting
c. still be selected
d. still selected
e. still selecting
4. The street ……………………. when we passed yesterday.
a. has repaired
b. is being repaired
c. was being repaired
d. is repaired
e. has been repaired
5. “When …………………?”
“Before World War I”
a. this hospital to be built
b. was this hospital being built
c. this hospital built
d. was this hospital built
e. this hospital has been built
6. Find the passive form of “They will look after you well”.
a. You will be looked after well.
b. They will be looked after you well.
c. You will be well looked after.
d. You are well will be looked after.
e. You will be to be looked after by them well.
7. A well-known architect is designing our new office.
The passive form is:
c. be designing
d. is designing
e. is being designed
8. What is the active form of “English is spoken in the United States” ?
a. People in the US speak English.
b. In the US speak English.
c. Everybody speak English in the US.
d. Everybody spoke English in the US.
e. People in US speaks English.
9. After the house ……………………. white, it looked beautiful.
a. had been painted
b. to be painting
c. had been painting
d. be painted
e. had painted
10. “What do people need for irrigation?”
The passive construction of the sentence is:
a. What is needed for irrigation?
b. What is irrigation needed for?
c. What people are needed for irrigation?
d. what is for irrigation needed?
e. What irrigation is needed?
11. Although the stolen car ……………………. the police cannot trace the thieves.
a. is being found
b. has found
c. has been found
d. having been found
e. had found
12. The child told us he had been left alone by his step mother in the empty building.
From the sentence above we know that:
a. The child had left his step mother alone in the empty building.
b. The child went to the empty building with his step mother, then she went away.
c. The child wanted to leave his step mother in the empty building.
d. The child had left his step mother before he went to the empty building.
e. The child wanted us to leave him alone with his step mother in the empty building.
13. My motorcycle is not running well now. The tires are flat and the chain ……………
a. needs to be fixing
b. is fixing
c. needs to be fixed
d. has fixed
e. needs to fix
14. The teacher would like the exercises …………………….. by everybody before tomorrow.
b. to be finished
d. have finished
e. already finished
15. “The boys have been told the good news” means:
a. The good news was told to the boys.
b. Somebody has told the boys the good news.
c. The good news has been told by the boys.
d. The boys have told the good news.
e. The good news about the boys has been told.
16. Nobody can do such a thing.
The passive construction of the sentence is:
a. Such a thing can done be by anybody.
b. A thing can be done by anybody.
c. A such thing can be done by somebody
d. Such a thing can be done by somebody.
e. Such a thing can’t be done by anybody.
17. The students ………………….. before they were allowed to join the class.
b. has punished
c. had been punished
d. were punished
e. are punished
18. The hotel ……………………. when I passed.
a. was built
b. has been built
c. had been built
e. was building
19. It was reported that medicine and rice ………………………. to the victims of the flood.
a. have been distributed
b. will be distributed
c. are being distributed
d. had been distributed
e. be distributed
20. The picture is not here anymore. It must have …………………….
a. been taken away
b. been taking away
c. took away
d. taken away
e. being taken away
GAYA PEGAS DAN GETARAN PEGAS
Guru Pembimbing: Bpk. Parsidi, S.pd
Kelas: XI IPA 3
SMA Negeri 1 Banjarmasin
GAYA PEGAS DAN GETARAN PEGAS
A. RUMUSAN MASLAH
1. Apa hubungan antara pertambahan panjang dan besar?
2. Apa hubungan antara periode dan massa beban yang tergantung pada pegas?
Terjadi perubahan pertambahan panjang yang dipengaruhi oleh gaya. Periode pada setiap beban akan berbeda-beda tergantung dari massa beban itu sendiri. Dan adanya hubungan antara gaya dan pertambahan panjang adalah berbanding lurus (sebanding).
D. KAJIAN PUSTAKA
Hukum Hooke berbunyi “Jika gaya tarik tidak melampaui batas elastis pegas, maka pertambahan panjang pegas berbanding lurus (sebanding) dengan gaya tariknya.”
Adapun rumusnya adalah:
– F= Gaya pegas (N)
– k = Konstanta (N/m)
– ∆X = Pertambahan Panjang (m)
E. ALAT/BAHAN DAN CARA KERJA
– Beban Bercelah
– Stand Penjepit
– Persiapkan alat dan bahan yang diperlukan
– Gantungkan seutas pegas dan penggaris pada tiang stand penjepit, dan ukurlah panjang pegas yang belum diberi beban sebagai panjang awal (Xo).
– Kemudian pada ujung pegas gantungkan beban, dan ukurlah panjang pegas yang telah diberi beban sebagai panjang akhir (Xn).
– Lalu, pegas itu disimpangkan (ditarik) kebawah sepanjang ± 10 cm dan lepaskan pegas itu.
– Ambil stopwatch dan jalankan stopwatch tersebut ketika mulai pegas itu bergerak, dengan gerakan atas bawah dan sambillah hitung banyak waktu.
– Kemudian, matikan stopwatch dan jumlah getaran tersebut berjumlah 10 kali (n=10 kali getaran).
Diketahui: Xn= 16cm = 0,16m
N= 10 kali getaran
Gerak harmonik adalah gerak yang menyebabkanbenda bergerak bolak-balik disekitar titik keseimbangannya. Periode adalah waktu yang diperlukan untuk membentuk satu getaran. Hubungan antara waktu dan periode adalah semakin lama waktunya maka semakin meningkat periodenya. Frekuensi adalah banyaknya getaran dalam 1 sekon. Hubungan antara waktu dan frekuensi adalah semakin lama waktunya maka frekuensinya semakin sedikit.
Faktor yang mempengaruhi getaran pegas adalah getaran dan waktu. Bentuk grafik dari hubungan antara T2 dan m berbentuk garis lurus dari kiri bawah sampai kanan atas. Hubungan antara T2 dan m berbanding lurus. Persamaan hubungan antara T2 dan m yaitu menghasilkan rumus:
Rumus untuk menghitung konstanta pegas yaitu:
Hasil konstanta dari percobaan:
Hasil rata-rata konstanta dari ke-7 percobaan tersebut adalah k=5,237
Pada praktikum kali ini kami dapat menyimpulkan bahwa semakin berat beban, maka pegas akan mengalami pertambahan panjang, dan adapun pengaruh terhadap waktu dan periode semakin lama. Sedangkan untuk konstantanya, semakin berat beban maka semakin kecil konstantanya. Semakin berat benda maka gaya pegas yang terjadi diperlukan akan semakin besar.