Bhs.Inggris

Telling Story

The Princess And The Pea

            Once upon a time there was a prince who wanted to marry a princess; but she would have to be a real princess. He travelled all over the world to find one, but nowhere could he get what he wanted. There were princesses enough, but it was difficult to find out whether they were real ones. There was always something about them that was not as it should be. So he came home again and was sad, for he would have liked very much to have a real princess.

            One evening a terrible storm came on; there was thunder and lightning, and the rain poured down in torrents. Suddenly a knocking was heard at the city gate, and the old king went to open it.

            It was a princess standing out there in front of the gate. But, good gracious! what a sight the rain and the wind had made her look. The water ran down from her hair and clothes; it ran down into the toes of her shoes and out again at the heels. And yet she said that she was a real princess.

            Well, we'll soon find that out, thought the old queen. But she said nothing, went into the bed-room, took all the bedding off the bedstead, and laid a pea on the bottom; then she took twenty mattresses and laid them on the pea, and then twenty eider-down beds on top of the mattresses.

            On this the princess had to lie all night. In the morning she was asked how she had slept.

            "Oh, very badly!" said she. "I have scarcely closed my eyes all night. Heaven only knows what was in the bed, but I was lying on something hard, so that I am black and blue all over my body. It's horrible!"

            Now they knew that she was a real princess because she had felt the pea right through the twenty mattresses and the twenty eider-down beds.

            Nobody but a real princess could be as sensitive as that.

            So the prince took her for his wife, for now he knew that he had a real princess; and the pea was put in the museum, where it may still be seen, if no one has stolen it.

BHS.INGGRIS

conversation

Waiter: welcome to our restaurant, how can I help you ma'am?
Guest: I like to have dinner with my friends, and I like to sit near the window was her garden
waitress: Well, let's come to me
Guest: ok
waitress: please sit
Guest: thanks
waitress: This our restaurant menu
Guest: oh yes, thank you,
waitress: please order the food was on the menu?
Guest: what faforit restaurant menu?
waitress: mushroom chicken steak and salad america
Guest: Well, I want to order two servings of chicken steak mushroom
waitress: you do not want to order a drink?
Guest: oh yeah, I want ice lemon tea and hot milk
waitress: Okay, please wait a moment
Guest: ok,
waitress: Excuse me, the food is ready and safe to eat
Guest: Thank you!
after eating
Guest: waitress
waitress: yes, no can I help?
Guest: we've finished eating. and what is the payment?
Waitress: Chicken steak mushroom two servings for Rp. 23,000, iced lemon tea for Rp. 3000, and milk pana for Rp. 2500
Guest: so how much in total?
waiter: Rp in total. 28,500
Guest: this payment
waitress: thank you, and do not forget to come back again to our restaurant to visit here
Guest: ok

KIMIA

Definition Thermochemistry

Thermochemical can be defined as part of chemistry that studies chemical reactions or changes the dynamics of the observed thermal / thermal only. One of applied science in everyday life is a chemical reaction in our bodies where the production of energy-the energy required or issued for all of the tasks that we do. The burning of fuels such as oil and coal used for power generation. The gasoline burned in a car engine will produce power that causes the car running. If we have a gas stove means we burn methane (the main component of natural gas) that produce heat for gold m ak. And through a sequence of reactions called metabolism, the food you eat will produce the energy we need for the body to function.

Almost all chemical reactions there is always energy is taken or removed. Let's examine this from happening and how do we know the change of energy.
Events thermochemical

Suppose we are going to do the chemical reactions in an enclosed space so no heat can exit or enter into the reaction mixture. Or the reaction is done in such a way that the total energy remains the same. Also suppose that the potential energy of the reaction is lower than the potential energy of the reactants so that the reaction occurs when there is a decrease of potential energy. But this energy can not just disappear because the total energy (kinetic and potential) should remain constant. Therefore, if the potential energy drops, the kinetic energy should rise means potential energy turns into kinetic energy. The addition amount of kinetic energy will cause the price of the average kinetic energy of molekulmolekul up, which we see as a rise in temperature of the reaction mixture. Mixed reaction to heat.

Most chemical reactions are not closed off from the outside world. When the reaction mixture to heat as described below, the heat can flow into the surroundings. Any changes that can release energy to the surroundings is called exothermic change. Note that if there is an exothermic reaction, the temperature of the reaction mixture will rise and the potential energy of chemical substances in question will fall.

Sometimes there are chemical changes occur which increases the potential energy of the substances concerned. If this happens, then the kinetic energy will come down so that the temperature also dropped. If the system is not closed in around him, the heat can flow to the reaction mixture and the amendments are called endothermic change. Note that if there is an endothermic reaction, the temperature of the reaction mixture will decrease and the potential energy of the substances involved in the reaction will rise.
Measurement of Energy in Chemical Reactions

The standard international unit for energy is Joule (J) derived from kinetic energy. One joule = 1 kgm 2 / s 2. Equivalent to the amount of energy that belongs to an object with a mass of 2 kg and a speed of 1 m / sec (when the British unit, object with a mass of 4.4 lb and a speed of 197 ft / min or 2.2 mile / hour).

1 J = 1 kg m 2 / s 2

Smaller unit of energy used in physics called the erg that cost = 1 × 10 -7 J. In reference to the energy involved in the reaction between reagents with molecular size usually replaced the larger unit kilojoules (kJ). One kilojoules = 1000 joules (1 kJ = 1000J).

All forms of energy can be converted entirely into heat and when a chemist measure of energy, usually in the form of heat. Method used to express the heat called calorie (cal abbreviation). The definition is derived from the effect of heat on the temperature of the object. At first calorie is defined as the amount of heat needed to raise the temperature of 1 gram of water with a temperature of 15 0 C for origin 1 0 C. Kilocalorie (kcal) is a unit of kilojoules as well as more appropriate to express energy changes in chemical reactions. Kilocalories units are also used to express the energy contained in the food.

Upon the acceptance of SI, now joules (or kilojoules) and preferably calories redefined in SI units. Now calories and kilocalories exact defined as follows:
1 cal = 4.184 J
1 kcal = 4.184 kJ

FISIKA

STATIC ELECTRICITY

At the time of rain, have you ever seen lightning? Lightning is a natural event that is very dangerous and feared by all the people, because the lightning causing a flash of light followed by a powerful voice in the air. If someone is struck by lightning, then the body will be burned. Due to dangerous lightning, the high-rise buildings high enough equipped with lightning rods. What causes lightning? Why is the building of high-rise buildings equipped with lightning rods? Find the answer by studying this material.

A. Atomic Structure
Thales mellitus, a Greek scientist, discovered electrical phenomenon obtained by rubbing amber, which in Greek is called electron.
After apparently rubbed amber could attract small objects that are nearby. Such properties are called electrification in electrical science. Electricity that occurs in a polished amber called static electricity is electricity that does not flow.

atomism
A substance composed of small particles called atoms. Atoms derived from the word atomos, which means can not be divided again. However, in its development, it still turns atom can be described again.

Atoms consist of two parts, namely the atomic nucleus and skin. The nucleus is positively charged, while the atomic shell composed of negatively charged particles called electrons.
The nucleus is composed of two kinds of particles, the positively charged protons and uncharged neutrons (neutral).
An atom is said to neutral when in essence there are positive charges (protons) which is equal to the negative charges (electrons) in the skin.
A positively charged atom is said if the number of positive charges (protons) in the nucleus more than the negative charges (electrons) in the skin surrounding atoms.
A negatively charged atom is said if the number of positive charges (protons) in the nucleus less than the number of negative charges (electrons) in the atomic shell.

The simplest atom is the hydrogen atom is only composed of one proton and one electron. Since the number of protons and electrons the same, then the hydrogen atom is said to be neutral atoms.
Helium atom consists of two protons, two neutrons and two electrons. As the number of protons and the same number of electrons, the helium atom is also regarded as a neutral atom.

B. Electrostatic Discharge
According to Benjamin Franklin, there are two load electricity were:
1. Positive electric charge
2. Negative electric charge

Nature of charge electricity were

    1. Two similar charge when brought near it will repel
    2. The two are not similar charge when brought near it will attract

C. Interaction of Charged Objects Electricity
1. When a plastic ruler rubbed with wool cloth, the electrons move from wool to plastic ruler, plastic ruler was so electrically charged negative.

2. Ebonite when rubbed with wool cloth, the electrons move from wool to ebonite, ebonite is electrically charged so negative.
3. When a glass rod is rubbed with silk, electrons move to the glass rod silk fabric, so positively charged glass rod