Laporan Praktikum Massa Jenis Fisika

Hukum Utama Hidrostatis

Hukum Utama hidrostatis menyatakan bahwa :

Tekanan hidrostatis suatu zat cair hanya bergantung pada tinggi kolom zat cair (h), massa jenis zat cair (r) dan percepatan grafitasi (g), tidak bergantung pada bentuk dan ukuran bejana.

Hukum utama hidrostatik berbunyi:

“Tekanan hidrostatik pada sembarang titik yang terletak pada bidang mendatar di dalam wadah suatu jenis zat cair sejenis dalam keadaan seimbang adalah sama”.

Tekanan Hidrostatis

Suatu fluida dapat dianggap tersusun atas lapisan-lapisan air dan setiap lapisan memberi tekanan pada lapisan bawahnya. Besar tekanan itu bergantung pada kedalaman, makin dalam letak suatu bagian fluida semakin besar tekanan pada bagian itu. Setiap bagian di dalam fluida statis akan mendapat tekanan zar cair yang disebabkan adanya gaya hidrostatis  disebut Tekanan Hidrostatis (P_h).

 
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Hortatory Exposition

Hortatory exposition is a type of spoken or written text that is intended to explain the listeners or readers that something should or should not happen or be done. In other words, this kind of text can be called as argumentation. Hortatory exposition text can be found in scientific books, journals, magazines, newspaper articles, academic speech or lectures, research report etc. Hortatory expositions are popular among science, academic community and educated people.

The communicative purpose is to persuade the readers or listeners that something should or should not be the case.

Generic Structure of Hortatory Exposition

1. Thesis : Statement or announcement of issue concern
2. Arguments : Reasons for concern that will lead to recommendation
3. Recommendation : Statement of what should or should not happen or be done based on the given arguments

Generic Features of Hortatory Exposition

1.A Hortatory exposition focuses on generic human and non human participants, except for speaker or writer referring to self.
2.It uses mental processes. It is used to state what the writer or speaker thinks or feels about something. For example: realize, feel etc.
3.It often needs material processes. It is used to state what happens, e.g. ….has polluted… etc.
4.It usually uses Simple Present Tense and Present Perfect Tense.
5.Enumeration is sometimes necessary to show the list of given arguments: Firstly, secondly …, Finally, etc

Mobile Phone

Mobile phone is one of a important thing this modern era. Do you know why ? Of course, it can help us to communicate with parents, family, friend, and the other. Mobile phone also can help us to taking pictures, record video, listen music, browse the education lesson, social media, playing games, and many more. Beside that, mobile phone also gives negative effects to people espesially to student.

Increasingly sophisticated mobile phone, increasingly there are many support facilities. That make the students to be lazy and cheat. Example, the students search the answer in the internet, answer the math question with used calculator, take the answer with used camera, used the dictionary application, sent the answer by used SMS (short massage service). Beside that, as for the other negative effects like the students see videos or pornographic pictures, and can also play a porn game. Other negative effect can cause social jealousy for students.

In the class, the students usually can’t control the use of their mobile phone. The chat all the time or browse the internet without time control. Most student tend to play with their mobile phone when they study at school. When they get bored, they will take their mobile phone to chat with their friens, play games or browse something in the internet. Even when the teacher explain the lesson, the students will just focus on their mobile phone not to the lesson. Because  that, mobile phone is don’t need to bring at school.

But not forever mobile phone give negative effects for the students, it can also give positive effects for student like  to download education lesson, compute with calculator which have many support facilities like a science log, sin, cos, tan, and others, also search the difficult word by dictionary apllication and take a picture when we have practicum to documentation. By download education file in mobile phone also can easily us to help our parent because don’t need to buy laptop or the other. Thats why mobile phone is very important to all the students.

Beside to help the student to studying in the class and finished the assignmnets, mobile phone also has a important function that to communicate with parents, family, or friends when we get accident or illness at school. Because from the experience, many students got accident and because their school prohibitted brought mobile phone, so they can’t called their parent, family, or friend. Thats why mobile phone is so important for the students in everytime.

            Therefore, the best way to resolve this problem is the students may bring any kind, type, brand mobile phones, as long as in a certain time will be conducted raids mobile phone secretly, in order to give a creepy impression to all the student, in order to mobile phone is only used for positive things which supports the learning process in the school, and not used for negative things, like disturbing the learning process, cheating, crime, and many more. And if the school find a violation will be given coaching and if the violation more heavy and be repeated, the school will be given sanction that is confiscation the mobile phone and call the parents.

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The Story of Calon Arang

Once upon time, in Girah village lived the supernatural widow named Calon Arang with her son who very beautiful named Ratna Manggali. Because all people afraid with the widow, so no man who brave to apply Ratna Manggali.

Knowing this, Calon Arang angry and condemn everyone as a punishment. She does it by doing a ceremony at the grave while giving offerings. Goddess Durga directly down and grant the petition of Calon Arang. After that, the epidemic disease directly attack all people in Girah village. The victims very much. The King Airlangga get this pitiful inform and try to destroy the disease and its causes.

One day, The King Airlangga heard that only Mpu Bharadah from Lemah Tulis Village could defeated Calon Arang. Then, The  King sent messengers to Mpu Bharadah asked for help. The requests of The King Airlangga received by Mpu Bharadah, then Mpu Bharadah sent his student named Bahula  to the king in order to easily the marriage of Bahula and Ratna Manggali.

Mpu Bharadah asked to Bahula ,”Bahula, could you help me ?”, Bahula answered, ”Yes, what can I do for you”, “You must married with Ratna Manggali, the son of Calon Arang, to easily us to beat Calon Arang.” said Mpu Bharadah. Without thinking, Bahula accepted, he answered ,”Okay, if that’s what you want, I will do for you”. After that Bahula went to the kingdom.

After The King heard about the plan from Bahula, the king agree with the plan of Mpu Bharadah, and Bahula went to Calon Arang to propose marriage to Ratna Manggali. The propose is accepted, and then married Bahula and Ratna Manggali, and Bahula stayed in Ratna Manggali’s house with Calon Arang.

From Ratna Manggali, Bahula got information about the habit of Calon Arang. Bahula as soon as back to his village Lemah Tulis while brought the black magic book of Calon Arang and he told the habit of Calon Arang to Mpu Bharadah.

“My lord, from Ratna Manggali, I got many information about the habit of Calon Arang that is everynight she always read her black magic book and does ceremony in the grave”, said Bahula to Mpu Bharadah. ”Good job Bahula, you doing it well”. Answered Mpu Bharadah. Then, Bahula directly told to came back to the Girah Village before known with his law. After that Mpu Bharadah also followed Bahula to Girah Village.

In the grave of Girah Village, finally Mpu Bharadah met with Calon Arang.

Mpu Bharadah said to Calon Arang ,”Can you remove your curse because too many victims were died. Calon Arang answer ,” I will remove my curse, but you must forgive all of my sins”.

Because of the sins of Calon Arang very much, Mpu Bharadah refused her wishes. “No, I can’t do that, because your sins very much” said Mpu Bharadah.

Since Mpu Bharadah refused her wishes, Calon Arang be angry and the great battle was happened. Calon Arang tried to killed Mpu Bharadah  by the fires that coming out of her eyes. Because of  Mpu Bharadah more supernatural, and instead Calon Arang was died in a stand condition.

Then,  Calon Arang was turn on again by Mpu Bharadah. Calon Arang asked to Mpu Bharadah ,”Why you turn on me again”, “I turn on you again because I will teach you the truth in order to give you the way to heaven and  maybe if you can, I will teach you the way to “The Moksa”. Answered Mpu Bharadah.

Calon Arang feel so happy because Mpu Bharadah want to teach the way to heaven. After he finish taught Calon Arang, Calon  Arang was turn off again and then her body was burned.

Mpu Bharadah told Bahula to report this to the king. The King Airlangga and his people thank you very much to Mpu Bharadah.

The king said ,”Thank you Bharadah, you already saved my people from this disaster. What can I give for to avenge your righteousness”. Mpu Bharadah answered ,”I don’t ask anything, I only want you held back again the old tradition that is Dewasasana, Rajasasana, Rajaniti, Rajakapakapa, Munasasana, Resisasana, and Adhigama. The King Airlangga agree and Mpu Bharadah purify the Girah Village and built temples there.

by: Angga Wira Dananjaya

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Mobile Phone and Its Influence

Who don’t know “mobile phone” ? Yes, the tools with sophisticated technology which the main function to connect peoples from different places using satellite technology. It’s used from the young to the elderly, and maybe there are some children who also have this tool. If you buy cheap mobile phone, you will get modest technology, but if you buy expensive mobile phone, so you will get sophisticated technology.

Mobile phone communication facilitate , especially over long distances. To help students who have difficulty when do their homework, mobile phone also can help contact friends who live far away to ask homework because it can save time. By used mobile phone students can add friends easily through direct phone or text message (SMS).

Mobile phone is important tool in this time, if you smart to used it, you can find many the benefits of mobile phone, that is can give the owner information from internet. Besides that, the benefits you have mobile phone is help the student to easily their homework by used internet, help you find what you want like, song, video, picture, game, application, and many more from download in internet.  

But, if you can’t used it cleverly, you can hurt yourself. There are effects of radiation that can affect the health of students, the children as a young generation that must diligent to study in this globalization era, but to be  lazy to study and play his phone. There are  also there cases of fraud through mobile phones with someone stealing pulses.

If you smart to used mobile phone, you will get everything the benefits of mobile phone, but when you can’t used mobile phone cleverly you will hurt yourself.

 by: Angga Wira Dananjaya

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Danger Of Smoking

Smoking is bad behavior in our life. Actually smoking not has benefits, but smoking can make the user to be sick and the worst user can death. Because that, you must avoid smoking to keep your health in order to be able to get up everyday.

Smoking is a habit that is very harmful. The habit of smoking can harm other people, especially our self. The losses will your receive is very much, both in terms of economic or healthy.

The first in terms of the economy, you will be spend lots of your money to buy cigarettes, because the effects of smoking is can make the user continues to addiction. The often you use it, the more addicted you will spend the money.

The second is to your healthy. Smoking is very dangerous to your healthy, because the smoke directly into the body and will be accommodated in the lung. Because that, will cause a lot of diseases such as shortness of breath, lung cancer, and the worst is death.

Besides harming our self, smoking can harm other people. When you smoking with your friend, you must keep a distance from them, if you smoking you can get rid of the smoke, but not with your friend, your friend will immediately breathe without throw and therefore a higher risk of disease compared to the user.

Because that you must avoid  smoking, because if you smoking you can break your healthy, friend, parents, and other.

by : Angga Wira Dananjaya  

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Dodol Nangka

Dodol Nangka, two full meaning of words.

Dodol Nangka, take me happy.

From there are many Dodol in Indonesia.

At the mount we all, just Dodol Nangka Swastika which i love.

This is Dodol which other than other, has a soft texture, soft, supple, and the point is very fitting as you snack.

Composition :

1.    Jackfruit

2.    Sugar

Price :

1.    Rp. 500,oo per seed

2.    Rp. 5000,00 per box (consist of 12 seed dodol)

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