Tuesday, 16 October 2012

Program Selepas PMR Sains


Panitia Sains Menengah Rendah akan mengadakan Program yang menarik pada sesi 2012. Program berINOVASI dan Rekacipta berdasrkan konsep FIZIK. Pergerakan udara dan daya. Membina model kapalterbang dari polisterin serta pertunjukan udara di Padang SMK Datuk Menteri berdasarkan model yang telah di bina. Segala bahan akan disedikana oleh pihak Sekolah, Panitia Sains, E-Learning for life, Panitia Seni Panitia matematik dan Guru. Program ini hanya untuk pelajar Tingkatan 3. Tarikh : 29.10.12 Masa 1 : 8.00 - 10.00 pg persembahan penerbagan RC Jet depron/polisterin. masa 2 : 10.45- 1.00 ptg merekacipta Jet depron/polisterin.

Friday, 27 January 2012

Donors and Recipients Blood/ Penderma dan Penerima Darah

1.Human blood can be divided into four groups, which is O, A, B and AB 2.Blood donation is a process that a donor voluntarily has the blood drawn for storage in a blood bank for subsequent use.

Sunday, 14 August 2011

The Sun / Matahari / Seng nGey nGey


The Sun
�� The Sun is the largest object and contains approximately 99.8% of the total of the mass of the Solar System.
Characteristics of the Sun
�� Age : 4.5 billion years
�� Shape : Spherical
�� Diameter : 1 390 000 km
�� Mass : 1.989 x 1034 kg
�� Mean density : 1.410 gm/cm^3
�� Gravity : 28 x gravity on Earth
�� Mean surface temperature : 6 000°C
�� Principal chemistry
�� Hydrogen : 70 %
�� Helium : 28%
�� All others : 2%
Structure of the Sun
�� The Sun atmosphere has several layers


Photosphere
�� The photosphere is the compact layer of gas seen to be shining with yellow light from earth
�� This layer is responsible for radiating heat and light from the Sun
�� It temperature is approximately 6 000°C
Chromosphere
�� The chromosphere is an irregular layer lies above the photosphere
�� It temperature rises from 10 000 °C and 500 000°C
�� It reddish can be seen during a total solar eclipse
Corona
�� The corona is the outer layer of the Sun
�� It extends far out into space and is very hot
�� It temperature is about 1.5 million °C

Phenomena on the Sun’s surface and their effects
Sunspots

�� Sunspots is a dark and cool regions that appear on the photosphere

Prominences

�� Prominences are huge clouds of gases which rise from chromosphere
�� It can last two to three months
�� It can extend approximately 50 000 km above the sun’s surface

Solar flare
�� Solar flares are tremendous explosions on the surface of the Sun
�� Solar flares directly affect the ionosphere and radio communication on Earth


Refresh Refresh
�� The Sun warms our planet, provides the light to and also necessary for
life on earth
�� The Sun is 150 million km far away from Earth
�� Sunspots always appear in pairs
�� Prominences are usually associated with sunspots activity
�� Solar flares can cause electrical power outages and damaged
communication satellites
�� Aurora is the phenomenon that cause the sky near the poles to become
colorful
�� Solar wind is a constant flow of plasma expanding from the corona

The Milky Way


The Universe
�� The Universe contains all of the galaxies, stars and planets
�� The exact size of the Universe is unknown
The Milky Way
�� The Milky Way is the galaxy which is the home of our solar system
�� Our solar system is thus situated within the outer regions of this galaxy
�� The Milky Way contains about 200 billion stars

Galaxies /Galaksi

Galaxies
�� A galaxy is made of billions of stars, dust and gas all held together by gravity
�� Galaxies are scattered throughout the universe and they are vary in size
�� Galaxies can be classified according to their appearance and shape.

Spiral
�� Spiral galaxies usually is shaped like a disk that tends to
resemble a whirlpool or pinwheel
�� It contains a lot of dark dust clouds and young star cluster


Elliptical
�� Elliptical galaxies are actually of ellipsoidal shape
�� Normally, elliptical galaxies contain very little gas, dust and older stars

Irregular
�� Irregular galaxies has an undefined shape
�� It is full of dust, gas and young star