What is the form of energy?

Do you know what the energy is? Have you ever thought when you do an activity or daily work, why can you do it? Yes. All of that because you have energy. Without energy, of course you won't be able to do all of that. Then the next question that arises is, where do you get all that energy? Come on, let's first look at a brief description of energy.

In the concept of the law of conservation of energy, it states that:

"ENERGY CANNOT BE CREATED OR BENEFITED".

A. Energy Can Only Be Changed Form Into Another Form

1. Motion energy can be converted into electrical energy (on a bicycle dynamo),

2. Motion energy becomes heat energy (when rubbing your palms together),

3. Electrical energy into motion energy (in the blender),

4. Electrical energy into heat energy (on electric stoves),

5. Electrical energy into sound energy (on a tape recorder),

6. Electrical energy into light energy (in lamps),

7. Chemical energy into motion energy (in the food you eat),

8. Chemical energy into electrical energy (in batteries),

9. Chemical energy into heat energy (on charcoal), and there are many other examples.

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B. There are various forms of energy, some are:

1. Energy of Motion (Kinetic)

The energy of motion is the energy that can cause an object to move or change places. For example, a boat propelled by the wind.

2. Electrical Energy

Electrical energy is the process of moving electrons in objects. For example, if an amber stone is rubbed on a cloth such as silk, the dust, straw and feathers will stick to the stone.

Electrical energy also comes from solar power (via solar panels), water power (in PLTA), steam power (in PLTU), diesel power (in PLTD), batteries/accumulators, and even fruit. How could that be! Anyway, just watch!

3. Heat Energy

Heat energy is energy that comes from objects rubbing together, or from heat energy sources, such as the sun, electricity, and fire.

Did you know that there are several dominant colors that can absorb heat and reflect heat? What colors are they? Just keep watching, key!

4. Sound Energy

Sound energy is energy that comes from a vibrating object. For example a musical instrument.

Do you know the hearing limits of humans, bats, dogs, cats and elephants? Just keep watching!

5. Light Energy

Light energy is energy that comes from a light source or its reflection. For example lights, sun, moon, stars, and so on.

6. Chemical Energy

Chemical energy is the energy contained in foodstuffs and minerals. For example, such as kerosene, gasoline, coal, gas, food, and so on, and next,

7. Nuclear energy

Nuclear energy is the energy produced by the atomic nucleus. For example in the Nuclear Power Plant (PLTN).

Did you know that the biggest electrical energy is lightning? And in our body there is also electricity. Anyway, just keep watching.

C. Every Energy Also Has a Source. For example,

1. The sun

The sun is the largest source of energy on earth. Solar panels are also commonly used as a means of generating electricity

2. Food Ingredients

Foods that we usually consume every day. This is what causes us to do our daily activities.

3. Wind

Wind is air that moves, originating from differences in temperature in an area, namely from areas where the air temperature is cold to areas where the air temperature is hot. Usually this energy is used to drive windmills which are used to grind grain and pump underground water, as well as rotating turbine generators to produce electricity.

4. Water

Water is used to turn generator turbines in river dams for hydroelectric power (PLTA)

5. Fuel

The fuel in question is such as firewood for cooking and heating a room (fireplace) in cold (snow) temperature areas.

6. Petroleum

Petroleum also produces various other materials such as aviation fuel (aircraft fuel), gasoline (car and motorcycle fuel), kerosene (stove fuel), diesel (diesel engine fuel such as buses, trucks and trains), oil (machinery lubricant), asphalt (road paving mixture), and LPG (Liquid Petroleum Gas) as fuel for gas stoves.

7. Coal

Coal is a rock formed from giant swamp ferns millions of years ago. Usually used for cooking, melting tin, and generating electricity in Steam Power Plants (PLTU)

8. Natural Gas

Natural gas is a smokeless fuel, used for industry and cooking. And further,

9. Fruit

Talking about fruit again, how can fruit produce electrical energy? How is that done? If so, listen to the explanation until it's finished, so that you become a master of science later, of course it starts from here, from reading a lot, key!

Read : The Air

D. Energy can not only be changed, it can also be transferred.

For example heat energy. In this energy transfer, there are three ways. namely:

1. Radiation

Radiation is the process of transferring heat energy through radiation and does not require an intermediary substance to transmit this energy. For example, sunlight that reaches the earth or the heat of a bonfire that radiates.

2. Conduction

Conduction is the process of transferring heat energy through propagation or conduction, and requires an intermediary to transmit this energy. Usually the transfer through a solid object such as heated iron.

3. Convection

Convection is the process of transferring heat energy through an intermediary substance or gas. Usually the transfer through liquid or gas, for example when boiling water.

Do you know why the water in the thermos remains hot? Keep listening, I won't give you the answer later.

E. Then There Are Some Important Figures In Science

Scientists who contributed greatly in relation to energy. For example:

1. Thales (625 – 547 BC)

A Greek philosopher, was the first to discover the movement of electrons (the basic concept of electricity)

2. Benjamin Franklin (1706 – 1790)

The man who first invented the lightning rod.

3. James Prescott Joule (1818 - 1889)

The scientist who first put forward the concept of energy

4. Enrico Fermi (1901 – 1954)

The first person to build a nuclear reactor.

5. Georges Claude

A chemist and engineer who invented the neon light

6. Alessandro Volta (1745 – 1827)

The man who first invented the battery.

7.Anthony Henry Becquerel (1852 – 1908)

The person who first discovered the radiation properties of a substance (radioactivity).

8. James Dewar (1842 – 1923)

A physicist and chemist who invented the flask.

9. Albert Einstein (1879 – 1955)

Inventor of the concept of the nuclear reaction.

F. In response to some of the questions above, namely:

1. Lightning is the largest source of electrical energy because of its power of 5,000,000 (million) volts when it strikes, while your house's electricity is at most 220 volts when it enters. So where's the amount come on!

2. Electricity in the body is in the form of very small signals that spread throughout the heart muscle so that our heart beats. To see the electrical signal using a tool called an electrocardiogram (heart measurement device).

3. The limits of human hearing vibrations per second are (20 – 20,000 vibrations/second), bats (40 – 120,000 vibrations/second), dogs (15 – 50,000 vibrations/second), cats (60 – 65,000 vibrations/second), and elephants (20 – 10,000 vibrations/second).

4. Black can absorb heat well, and white can reflect light well. For example, when you wear black clothes during the day, it must be hot to the point of sweating. Meanwhile, if you wear white clothes, it's definitely not so hot. If you don't believe it, just try it.

5. The water in the thermos remains hot due to the prevention of heat transfer by radiation, conduction and convection. The silver coating on the glass bottles prevents radiation from occurring. The thickness of the glass helps prevent conduction, and the empty space between the walls prevents convection. Besides that, according to the nature of the white color on the inner walls of the bottle, it also makes heat reflect off of each other (it doesn't absorb into the walls, which releases heat energy) and also because of the nature of the glass on the walls of the bottle, which can retain the heat that has entered it.

6. Fruit can generate electricity because there is an acid in it (sulfuric acid/H2SO4).

How to? Easy!

1. First, you try to take:

a. 2 apples,

b. 1 paper clip (paperclip) or zinc,

c. 1 copper wire (from stripped wires the size of a matchstick),

d. 2 ordinary cables (medium size), and

e. 1 simple digital clock.

2. The method is:

a. Pierce the first apple with a paperclip and the other with copper wire.

b. Attach 1 end of the first common wire to the paperclip end of the 1st apple and attach another 1 end of the second common wire to the copper wire end of the 2nd apple.

c. Then open the digital clock and remove the battery.

d. Look for the (+) and (-) signs in the battery compartment.

e. Connect the two ends of each cable, one to the (+) sign and the other to the (-) sign in the battery compartment earlier (use gloves to be safe).

f. Then the digital clock will live.

Apart from apples, you can also use tomatoes, pears, potatoes or carrots.

The principle of the electricity generating fruit is the same as the principle of the battery used to start the motorized vehicle engine. Inside the battery, there is a metal that is immersed as an electrode in a strong acid (sulfuric acid or H2SO4).

Can energy run out? Of course. For that we have to save money. The method? That is:

1. Use the house's electricity as needed and turn off the rest, especially the TV, don't let the TV watch us.

2. Do not open the refrigerator door too often

3. Do not use a microwave if there is a stove

4. Replace old light bulbs, either bulbs or neon, with new, energy-efficient models.

5. Buy energy efficient electronic devices (low power)

6. Avoid frequently turning on and off power tools in the short term

7. Buy a small car with a diesel engine (to save oil) or an electric car/motorcycle that uses batteries.

8. If you are already an expert and have the capital, use nuclear energy (PLTN)

That's all the brief information about energy, I hope this article is useful as reference material, thanks for reading.

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