TSUNAMI Presented by: PUTRI EDRYNA LARASATI 1310007008

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Eclip

se

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2 Incident

Eclipse

2 Incident

Eclipse

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Lunar Eclipse

lunar eclipse occurs when the Earth passes between the

Sun and the Moon, causing the shadow to cover the full

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Pendidikan Fisika

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Solar Eclipse

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Total eclipse, occurs when the peak time of the eclipse, the disk of the Sun is closed completely by a disk of the Moon. At that time, the Moon disc as large or larger than the disk of the sun. The sun disc size and the disc moon itself varies depending on each distance Earth-Moon and the Earth-Sun.

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An annular eclipse, occurs when the disk of the Moon (when the peak eclipse) only cover part of the Sun disc. This type of eclipse occurs when the size of the disk of the Moon is smaller than the Sun disc. So that when the disc Moon is in front of the disc of the Sun, not the entire disk of the Sun will be covered by a disk of the Moon. The sun disc portion which is not covered by a disk of the Moon, located in the disk around the moon and looks like a luminous ring.

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Palembang, Sumatra: 07.21

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Kukang and squirrels that show aggressive activity when the sun is covered,

so also for the animal species of birds changes, such as seeking protection during a solar eclipse.

ordinary bats are nocturnal going back out to look for food because she thought the night had come.

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TSUNAMI

Presented by:

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TSUNAMI earthquake

shifting plates

a volcanic eruption.

The tsunami also often mistaken as a tidal wave.

However, the actual tsunami wave has nothing to do with the events of the tide. Therefore, to avoid misinterpretation, oceanographers often use the term seismic sea waves (seismic sea wave) to refer to the tsunami, which is scientifcally more

accurate.

However, the actual tsunami wave has nothing to do with the events of the tide. Therefore, to avoid misinterpretation, oceanographers often use the term seismic sea waves (seismic sea wave) to refer to the tsunami, which is scientifcally more

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Pendidikan Fisika

Universitas Ahmad Dahlan

Cause of the

Tsunami?

Cause of the

Tsunami?

Vertical movement in the Earth's crust, caused the seabed to rise or may fall suddenly, as a result there was a disturbance in the balance of seawater. This resulted in the energy fow of sea water, which when it reached the coast into big waves resulting tsunami.

The speed

wave of a

tsunami

The speed

wave of a

tsunami

In the deep ocean, tsunami waves traveling at speeds of up to 1000 km per hour. Equals the speed of the aircraft

depends on the depth of the sea where the waves

occurred, where speed can reach hundreds of kilometers per hour. When the tsunami reaches the shore, its speed will be approximately 50 km / h and energy is very

damaging coastal path. Damage and casualties that occur due to the Tsunami can be caused by

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Tsunami by

physics?

Explanation tsunami wave can be approximated by the incident transverse wave propagation. Wave energy is a function of the height / depth and fast propagation. While the height of the wave itself is affected by the wavelength. Pajtang enormous

tsunami wave which is about hundreds of kilometers and are as shallow waves. Shallow wave itself is a water wave when the ratio of the depth to the

wavelength is smaller than 0.05.

Explanation tsunami wave can be approximated by the incident transverse wave propagation. Wave energy is a function of the height / depth and fast propagation. While the height of the wave itself is affected by the wavelength. Pajtang enormous

tsunami wave which is about hundreds of kilometers and are as shallow waves. Shallow wave itself is a water wave when the ratio of the depth to the

wavelength is smaller than 0.05. Well magnitude shallow wave

propagation speed can be determined by

V=

g is the acceleration due to gravity g is the acceleration due to gravity

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What happens at the time of the

tsunami wave energy enters shallower

region?

What happens at the time of the

tsunami wave energy enters shallower

region?

It turns out very little reduction of wave energy and wave energy can even be said to be fxed. This is in accordance with the principle of the rate of energy loss (energy loss rate) on a traveling wave is inversely

proportional to its wavelength. So in conclusion with large wavelength (eg tsunami wave), it will be less energy is lost, so that it can be said as before, the tsunami wave energy fxed / constant. ???

It turns out very little reduction of wave energy and wave energy can even be said to be fxed. This is in accordance with the principle of the rate of energy loss (energy loss rate) on a traveling wave is inversely

proportional to its wavelength. So in conclusion with large wavelength (eg tsunami wave), it will be less energy is lost, so that it can be said as before, the tsunami wave energy fxed / constant. ???

With the constant energy and a decrease in the speed of tsunami waves as reduction in water depth will

impact on the ocean wave height increases. In fact, according to scientists tsunami wave velocity of 300 m / s, then the wave height will be increased by 30 m. It is remarkable high tsunami wave

With the constant energy and a decrease in the speed of tsunami waves as reduction in water depth will

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Tips for survivors of the tsunami wave

- If a big earthquake and tsunami potential immediately to evacuate and stay away from areas of the seashore

-Up to place high approx could not be achieved by water waves

-Use hill / mountain area nearby as you and your family evacuation destination

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Early signs of the arrival of the tsunami

1. Starting an earthquake

2. Listen to the rumbling sounds

3. Note the decrease in sea water

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Facts of The occurrence of Tsunami in

Indonesia

1. The Tsunami On August 26, 1883 due to the eruption of Krakatoa killed more than 36,000 people

2. On 17 July 2006, earthquake and tsunami hit the southern island of Java, the victims more than 500 peoples

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By : Puspa Arum Juwitasari

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•

When w

ater ev

aporat

es from

the sur

face of

earth

from

lakes, l

and, ri

ver, str

eams,

ocean,

ponds

and fr

om tre

es

by tran

spiratio

n, this

rises in

to

the atm

ospher

e in the

form o

f

a gas b

y conve

ction. A

s this

warm a

ir rises

, cold a

ir move

s

in and

meets

the wa

rm moi

st

air whi

ch caus

es the

warm a

ir

to rise

rapidly

formin

g large

,

dense

thunde

rstorm

clouds

.

Formed

at a he

ight be

tween

15,000

to 25,0

00 feet

above

sea lev

el, the

water d

roplets

are car

ried up

ward to

a muc

h

cooler

region

until so

me of

them a

re conv

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•

During the thunderstorm, precipitation

particles (water droplets and ice crystals)

in the higher region of the clouds will

then collide with each other as they rub

against each other in strong currents of

air. This strong air current here is due to

the ascending (rising) and descending air

in the updrafts and downdrafts of the

storm. As a result, this colliding and

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•

Thus, causing areas of negative

and positive charge to develop

within the thunderstorm. Some

of the ice (snow) crystals and

water droplets will therefore

become positively charged (+

plus sign), while others become

negatively charged (- minus

sign). The positive and negative

electrical charges in the cloud

then separate from each other

where the positively charged

snow crystals moves to the

upward top section of the storm

cloud while the heavier negative

charge ice crystal and water

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When the diference in the charges at the lower section of the cloud becomes large enough, whereby reaching a certain strength, a giant "spark" occurs causing the fow of electricity (electrical energy ) to be released through the air to another point that has an opposite charge. This release of electrical energy is called a leader stroke

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•

Surah Al-Furqan ; verse 47

•

َلَعَجَو تاَبُس َمَْوّلاَو اساَبِل َلَْوللا ُمُكَل َلَعَج يَِولا ََُهَو

ارَُشُن َراََوّلا

•

Artinya:”

Dan Dialah yang

menjadikan untuk kamu malam

sebagai pakaian da tidur sebagai

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• Surat Yasin Ayat 37-40 • ٣٧ َنَُمِلُْظّ مُه اَذِإَف َراََوّلا ُهِّّْ ُخَلْسَن ُلَْوللا ْمَُول ٌةَيآَو ٣٨ اََول ّرَقَتْسُمِل يِّرْجَت َُْموشلاَو . ِمَِلَعْلا ِزيِزَعْلا ُّريِدْقَت َكِلَذ ٣٩ ِميِدَقْلا ِنَُجّْرُعْلاَك َداَع َوتَح َلِزاََّّ ُهاَنْرودَق َّرَمَقْلاَو . ٤٠ َُْموشلا َل . َنَُحَبْسَي ٍكَلَف يِف لُكَو ِراََوّلا ُقِباَس ُلَْوللا َلَو َّرَمَقْلا َكِرْدُت نَأ اَََل يِغَبَّي

• _Artinya:“_{Dan suatu tanda (kekuasaan Allah yang besar) bagi}

mereka adalah malam; Kami tanggalkan siang dari malam itu, maka dengan serta merta mereka berada dalam kegelapan, dan matahari berjalan ditempat peredarannya. Demikianlah ketetapan Yang Maha Perkasa lagi Maha Mengetahui. Dan telah Kami

tetapkan bagi bulan manzilah-manzilah, sehingga (setelah dia

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•

Rotation of the Earth:

The Earth

orbits around the Sun. It takes one

year to go around the Sun one

complete time. The Earth also

rotates, or spins, on its axis. It takes

one day to spin around itself one

complete time. The Earth's axis is

not straight up and down, but tilted

at an angle of 23.5 degrees. The

rotation is what causes the change

from day to night. This tilt is

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Universitas Ahmad Dahlan

Why Does the Earth Spin?

4.54 BILLION YEARS AGO, OUR SOLAR SYSTEM FORMED

WITHIN A CLOUD OF

HYDROGEN NOT UNLIKE THE ORION NEBULA, OR THE EAGLE NEBULA, WITH ITS AWESOME PILLARS OF CREATION.

THEN, IT TOOK SOME KICK, LIKE FROM THE SHOCKWAVE FROM A NEARBY SUPERNOVA, AND THIS SET A REGION OF THE COLD GAS FALLING

INWARD THROUGH ITS MUTUAL GRAVITY. AS IT COLLAPSED, THE CLOUD BEGAN TO SPIN.

4.54 BILLION YEARS AGO, OUR SOLAR SYSTEM FORMED

WITHIN A CLOUD OF

HYDROGEN NOT UNLIKE THE ORION NEBULA, OR THE EAGLE NEBULA, WITH ITS AWESOME PILLARS OF CREATION.

THEN, IT TOOK SOME KICK, LIKE FROM THE SHOCKWAVE FROM A NEARBY SUPERNOVA, AND THIS SET A REGION OF THE COLD GAS FALLING

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IT’S THE CONSERVATIO N OF ANGULAR MOMENTUM. IT’S THE CONSERVATIO N OF ANGULAR MOMENTUM.

THE EARTH SPINS BECAUSE IT FORMED IN THE ACCRETION DISK OF A CLOUD OF

HYDROGEN THAT COLLAPSED DOWN FROM MUTUAL

GRAVITY AND NEEDED TO CONSERVE ITS ANGULAR MOMENTUM. IT CONTINUES TO SPIN BECAUSE OF

INERTIA.

THE REASON IT’S ALL THE

SAME DIRECTION IS BECAUSE THEY ALL FORMED TOGETHER IN THE SAME SOLAR NEBULA, BILLIONS OF YEARS AGO.

THE EARTH SPINS BECAUSE IT FORMED IN THE ACCRETION DISK OF A CLOUD OF

HYDROGEN THAT COLLAPSED DOWN FROM MUTUAL

GRAVITY AND NEEDED TO CONSERVE ITS ANGULAR MOMENTUM. IT CONTINUES TO SPIN BECAUSE OF

INERTIA.

THE REASON IT’S ALL THE

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Day and Night

The Earth exhibits two different kinds of motion. One is rotation around

its own axis and another movement is it revolves around the sun in a

fixed orbit. The spinning of the Earth around its own axis causes day and

night. It takes 24 hours to complete one rotation. However, sunlight

shines only on the half of the Earth facing the Sun. That half has day the

other half is dark and has a night.

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How

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Rainbow

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How this is happened ?

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The Jabal Magnet

Phenomena

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Are you know about jtabal magnet?

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What happened?

Room Illusion

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What happened?

When the car is running in a fat, then that is invisible to our eyes is that there are trees on both sides of the road. By simple logic, automatically in the brain that this tree will stand upright. Likewise, when the road to

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What happened?

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Why these trees can be tilted like

that?

Soil Creep

Symptoms of soil creep is characterized by

the shape of tree is tilted or curved.

Symptoms of soil creep is often

characterized by the shape of the tree is

tilted or even curved. Soil profle will be

visible on the curved surface. Curvature of

the upper soil (soil) this happens because

the heating process (expansion) and

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1. At the time of the day,the ground will foating due to heat. Then the surface of sloping ground will expand following the line 1 → 2. That perpendicularly from the surface of the feld.

2. At night time there is a reduction in temperature or cooling the ground. This cooling does not return from the point 2 to original point (1), but what happens is a decrease of point 2 → 3 vertically as follows gravity.

3. This process resulted in the change of resultant position of the points of the surface. Because this process is repeated day and night, as well as the summer and winter, then ground it becomes visible curve.

4. This curvature will affect the trees also electricity poles that stuck on the surface