Nuclear energy is released by the splitting (fission) or merging together (fusion) of the nuclei of atom(s). The conversion of nuclear mass to energy is consistent with the mass-energy equivalence formula ΔE = Δm.c², in which ΔE = energy release, Δm = mass defect, and c = the speed of light in a vacuum (a physical constant). Nuclear energy was first discovered by French physicist Henri Becquerel in 1896, when he found that photographic plates stored in the dark near uranium were blackened like X-ray plates, which had been just recently discovered at the time 1894.
Nuclear chemistry can be used as a form of alchemy to turn lead into gold or change any atom to any other atom (albeit through many steps). Radionuclide (radioisotope) production often involves irradiation of another isotope (or more precisely a nuclide), with alpha particles, beta particles, or gamma rays. Iron has the highest binding energy per nucleon of any atom. If an atom of lower average binding energy is changed into an atom of higher average binding energy, energy is given off. The chart shows that fusion of hydrogen, the combination to form heavier atoms, releases energy, as does fission of uranium, the breaking up of a larger nucleus into smaller parts. Stability varies between isotopes: the isotope U-235 is much less stable than the more common U-238.
Thursday, March 18, 2010
Wednesday, March 17, 2010
ENERGY FROM THE SUN
About half the incoming solar energy reaches the Earth's surface.
The Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is mostly spread across the visible and near-infrared ranges with a small part in the near-ultraviolet.
Earth's land surface, oceans and atmosphere absorb solar radiation, and this raises their temperature. Warm air containing evaporated water from the oceans rises, causing atmospheric circulation or convection. When the air reaches a high altitude, where the temperature is low, water vapor condenses into clouds, which rain onto the Earth's surface, completing the water cycle. The latent heat of water condensation amplifies convection, producing atmospheric phenomena such as wind, cyclones and anti-cyclones. Sunlight absorbed by the oceans and land masses keeps the surface at an average temperature of 14 °C. By photosynthesis green plants convert solar energy into chemical energy, which produces food, wood and the biomass from which fossil fuels are derived.
The total solar energy absorbed by Earth's atmosphere, oceans and land masses is approximately 3,850,000 exajoules (EJ) per year. In 2002, this was more energy in one hour than the world used in one year. Photosynthesis captures approximately 3,000 EJ per year in biomass. The amount of solar energy reaching the surface of the planet is so vast that in one year it is about twice as much as will ever be obtained from all of the Earth's non-renewable resources of coal, oil, natural gas, and mined uranium combined.
From the table of resources it would appear that solar, wind or biomass would be sufficient to supply all of our energy needs, however, the increased use of biomass has had a negative effect on global warming and dramatically increased food prices by diverting forests and crops into biofuel production. As intermittent resources, solar and wind raise other issues.
Solar energy can be harnessed in different levels around the world. Depending on a geographical location the closer to the equator the more "potential" solar energy is available.
The Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is mostly spread across the visible and near-infrared ranges with a small part in the near-ultraviolet.
Earth's land surface, oceans and atmosphere absorb solar radiation, and this raises their temperature. Warm air containing evaporated water from the oceans rises, causing atmospheric circulation or convection. When the air reaches a high altitude, where the temperature is low, water vapor condenses into clouds, which rain onto the Earth's surface, completing the water cycle. The latent heat of water condensation amplifies convection, producing atmospheric phenomena such as wind, cyclones and anti-cyclones. Sunlight absorbed by the oceans and land masses keeps the surface at an average temperature of 14 °C. By photosynthesis green plants convert solar energy into chemical energy, which produces food, wood and the biomass from which fossil fuels are derived.
The total solar energy absorbed by Earth's atmosphere, oceans and land masses is approximately 3,850,000 exajoules (EJ) per year. In 2002, this was more energy in one hour than the world used in one year. Photosynthesis captures approximately 3,000 EJ per year in biomass. The amount of solar energy reaching the surface of the planet is so vast that in one year it is about twice as much as will ever be obtained from all of the Earth's non-renewable resources of coal, oil, natural gas, and mined uranium combined.
From the table of resources it would appear that solar, wind or biomass would be sufficient to supply all of our energy needs, however, the increased use of biomass has had a negative effect on global warming and dramatically increased food prices by diverting forests and crops into biofuel production. As intermittent resources, solar and wind raise other issues.
Solar energy can be harnessed in different levels around the world. Depending on a geographical location the closer to the equator the more "potential" solar energy is available.
SOLAR ENERGY
Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on earth. Only a minuscule fraction of the available solar energy is used.
Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy's uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, solar hot water, solar cooking, and high temperature process heat for industrial purposes.To harvest the solar energy, the most common way is to use solar panels.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy's uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, solar hot water, solar cooking, and high temperature process heat for industrial purposes.To harvest the solar energy, the most common way is to use solar panels.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
Wednesday, March 3, 2010
UNION OF UNITED ARAB EMIRATES
STEPS TOWARDS UNION
THE DECLARATION OF THE FORMATION OF THE UNITED ARAB EMIRATES ON THE 2nd OF DECEMBER 1971, WAS A GREAT EVENT IN THE HISTORY OF THE AREA, BECAUSE IT MEANT UNITY AND STRENGTH FOR THE ARAB NATION.
IN FEBRUARY 1968, THE RULERS OF ABU DHABI AND DUBAI HELD A MEETION TO DISCUSS UNITY BETWEEN THEIR TWO EMIRATES. THE MEETING WAS FOLLOWED BY A CALL TO THE RULERS OF THE OTHER EMIRATES IN THE GULF TO MEET TOGETHER AND DISCUSS THE ISSUE OF UNITY.
THE RULER OF SEVEN EMIRATES CALL THE QATAR AND BAHRAIN RULERS TO JOINED THEM.
ON THE 2nd DECEMBER 1971 THE UNITED ARAB EMIRATES WAS ANNOUNCED AND ITS TEMPORARY CONSTITUTION ORGANIZE THE STATE, IT AUTHORITIES AND ITS TYPE OF RULE. AND HIS HIGHNESS SHEIKH ZAYED BIN SULTAN AL NAHYAN WAS ELECTED PRESIDENT OF THE COUNTRY, AND HIS HIGHNESS SHEIKH RASHID BIN SAEED AL- MAKTOUM WAS ELECTED VICE PRESIDENT.
THE CONSTITUTION OF UAE WAS ANNOUNCED ON 2 DECEMBER, 1971 THE DAY THE UNION WAS SET UP AND IT INCLUDED THE FOLLOWING THINGS.:
1. ISLAM IS THE OFFICIAL RELIGION OF THE STATE.
2. ARABIC IS THE OFFICIAL LANGUAGE OF THE STATE.
3. IT GUARANTEES THE FREEDOM AND EQUALITY OF ALL UAE NATIONALS.
THE SYSTEM OF RULE IN THE U.A.E
IT IS CLEARLY STATED IN THE CONSTITUTION THAT AUTHORITY IS LAID IN THE HANDS OF THE FOLLOWING:
1. THE UNION SUPREME COUNCIL.
2. THE PRESIDENT OF THE UNION AND THE VICE-PRESIDENT.
3. THE UNION CABINET.
4. THE UNION NATIONAL COUNCIL
5. THE UNION JURISDICTION.
THE UNION SUPREME COUNCIL
THERE ARE TWO FUNCTION OF UNION SUPREME COUNCIL
A. STATING THE GENERAL POLICY OF THE STATE.
B. APPROVING THE UNION LAW AND THE ANNUAL PUBLIC BUDGET.
THE PRESIDENT AND VICE PRESIDENT
THE UNION SUPREME COUNCIL ELECT THE PRESIDENT AND THE VICE PRESIDENT. ON 2nd DECEMBER 1971, HIS HIGHNESS SHEIKH ZAYED BIN SULTAN AL NAHYAN WAS ELECTED AS A PRESIDEN OF UNITED ARAB EMIRATES.
IN 1990, HIS HIGHNESS SHEIKH MAKTOUM BIN RASHID AL MAKTOUM WAS ELECTED AS A VICE- PRESIDENT AND PRIME MINISTER OF THE STATE AFTER THE DEATH OF HIS LATE FATHER HIS HIGHNESS SHEIKH RASHID BIN SAEED AL MAKTOUM.
IN 2004, HIS HIGHNESS SHEIK KHALICA BIN ZAYED AL NAHAYAN WAS ELECTED AS THE SECOND PRESIDENT OF THE UNITED ARAB EMIRATES.
THE UNION CABINET
THE CABINET CONSISTS OF THE PRIME MINISTER, THE DEPUTY PRIME MINISTER AND A NUMBER OF MINISTERS. THE FIRST UNION CABINET CONSISTED OF 12 MINISTERS. NOW IT CONSISTS OF 22 MINISTERS.
THE UNION NATIONAL COUNCIL
THIS COUNCIL CONSISTS OF 40 MEMBERS OF UAE CITIZEN. THE UNION NATIONAL COUNCIL IS RESPONSIBLE FOR DISCUSSION THE PUBLIC BUDGET AND THE LAWS REFERRED TO BY THE CABINET.
THE UNION JURISDICTIONS.
THE CONSTITUTION CONSIST OF NUMBER OF COURTS.
1. THE UNION SUPREME COURT
2. THE UNION ELEMENTARY COURTS.
THE DECLARATION OF THE FORMATION OF THE UNITED ARAB EMIRATES ON THE 2nd OF DECEMBER 1971, WAS A GREAT EVENT IN THE HISTORY OF THE AREA, BECAUSE IT MEANT UNITY AND STRENGTH FOR THE ARAB NATION.
IN FEBRUARY 1968, THE RULERS OF ABU DHABI AND DUBAI HELD A MEETION TO DISCUSS UNITY BETWEEN THEIR TWO EMIRATES. THE MEETING WAS FOLLOWED BY A CALL TO THE RULERS OF THE OTHER EMIRATES IN THE GULF TO MEET TOGETHER AND DISCUSS THE ISSUE OF UNITY.
THE RULER OF SEVEN EMIRATES CALL THE QATAR AND BAHRAIN RULERS TO JOINED THEM.
ON THE 2nd DECEMBER 1971 THE UNITED ARAB EMIRATES WAS ANNOUNCED AND ITS TEMPORARY CONSTITUTION ORGANIZE THE STATE, IT AUTHORITIES AND ITS TYPE OF RULE. AND HIS HIGHNESS SHEIKH ZAYED BIN SULTAN AL NAHYAN WAS ELECTED PRESIDENT OF THE COUNTRY, AND HIS HIGHNESS SHEIKH RASHID BIN SAEED AL- MAKTOUM WAS ELECTED VICE PRESIDENT.
THE CONSTITUTION OF UAE WAS ANNOUNCED ON 2 DECEMBER, 1971 THE DAY THE UNION WAS SET UP AND IT INCLUDED THE FOLLOWING THINGS.:
1. ISLAM IS THE OFFICIAL RELIGION OF THE STATE.
2. ARABIC IS THE OFFICIAL LANGUAGE OF THE STATE.
3. IT GUARANTEES THE FREEDOM AND EQUALITY OF ALL UAE NATIONALS.
THE SYSTEM OF RULE IN THE U.A.E
IT IS CLEARLY STATED IN THE CONSTITUTION THAT AUTHORITY IS LAID IN THE HANDS OF THE FOLLOWING:
1. THE UNION SUPREME COUNCIL.
2. THE PRESIDENT OF THE UNION AND THE VICE-PRESIDENT.
3. THE UNION CABINET.
4. THE UNION NATIONAL COUNCIL
5. THE UNION JURISDICTION.
THE UNION SUPREME COUNCIL
THERE ARE TWO FUNCTION OF UNION SUPREME COUNCIL
A. STATING THE GENERAL POLICY OF THE STATE.
B. APPROVING THE UNION LAW AND THE ANNUAL PUBLIC BUDGET.
THE PRESIDENT AND VICE PRESIDENT
THE UNION SUPREME COUNCIL ELECT THE PRESIDENT AND THE VICE PRESIDENT. ON 2nd DECEMBER 1971, HIS HIGHNESS SHEIKH ZAYED BIN SULTAN AL NAHYAN WAS ELECTED AS A PRESIDEN OF UNITED ARAB EMIRATES.
IN 1990, HIS HIGHNESS SHEIKH MAKTOUM BIN RASHID AL MAKTOUM WAS ELECTED AS A VICE- PRESIDENT AND PRIME MINISTER OF THE STATE AFTER THE DEATH OF HIS LATE FATHER HIS HIGHNESS SHEIKH RASHID BIN SAEED AL MAKTOUM.
IN 2004, HIS HIGHNESS SHEIK KHALICA BIN ZAYED AL NAHAYAN WAS ELECTED AS THE SECOND PRESIDENT OF THE UNITED ARAB EMIRATES.
THE UNION CABINET
THE CABINET CONSISTS OF THE PRIME MINISTER, THE DEPUTY PRIME MINISTER AND A NUMBER OF MINISTERS. THE FIRST UNION CABINET CONSISTED OF 12 MINISTERS. NOW IT CONSISTS OF 22 MINISTERS.
THE UNION NATIONAL COUNCIL
THIS COUNCIL CONSISTS OF 40 MEMBERS OF UAE CITIZEN. THE UNION NATIONAL COUNCIL IS RESPONSIBLE FOR DISCUSSION THE PUBLIC BUDGET AND THE LAWS REFERRED TO BY THE CABINET.
THE UNION JURISDICTIONS.
THE CONSTITUTION CONSIST OF NUMBER OF COURTS.
1. THE UNION SUPREME COURT
2. THE UNION ELEMENTARY COURTS.
LAWS OF MOTION
LAWS OF MOTION
THERE ARE THREE LAWS OF MOTION:
1. NEWTON'S FIRST LAW OF MOTION GIVES RISE TO THE IDEA OF INERTIA AND MOMENTUM.
2. NEWTON'S SECOND LAW OF MOTION DERIVES A RELATIONSHIP BETWEEN THE CAUSE AND QUALITY OF MOTION.
3. NEWTON'S THIRD LAW OF MOTION GIVES RISE TO THE IDEA OF CAUSE AND EFFECT(ACTION AND REACTION).
PRINCIPLE OF INTERIA
THE TENDENCY OF A BODY TO REMAIN IN THE STATE IT IS (STATIONERY OR MOVING), IS CALLED ITS INERTIA.
MOMENTUM
WHEN YOU CATCH A BALL THAT HAS BEEN THROWN TOWARDS YOU, YOU EXPERIENCE A CERTAIN IMPACT OR INFLUENCE OF FORCE AGAINST YOR PALMS. THIS IS BECAUSE A MOVING BODY HAS MOEMENTUM. THE MAGNITUDE OF THE MOMENTUM DEPENDS UPON TWO FACTORS:
1. THE MASS OF THE OBJECT (M)
THE MORE THE MASS (i.e., THE HEAVIER THE BODY), THE GREATER IS THE MOMENTUM POSSESSED BY THE BODY.
2. THE VELOCITY WITH WHICH THE BODY IS MOVING (V)
A BODY, MOVING WITH A HIGH VELOCITY, HAS A GREATER MOMENTUM.
THERE ARE THREE LAWS OF MOTION:
1. NEWTON'S FIRST LAW OF MOTION GIVES RISE TO THE IDEA OF INERTIA AND MOMENTUM.
2. NEWTON'S SECOND LAW OF MOTION DERIVES A RELATIONSHIP BETWEEN THE CAUSE AND QUALITY OF MOTION.
3. NEWTON'S THIRD LAW OF MOTION GIVES RISE TO THE IDEA OF CAUSE AND EFFECT(ACTION AND REACTION).
PRINCIPLE OF INTERIA
THE TENDENCY OF A BODY TO REMAIN IN THE STATE IT IS (STATIONERY OR MOVING), IS CALLED ITS INERTIA.
MOMENTUM
WHEN YOU CATCH A BALL THAT HAS BEEN THROWN TOWARDS YOU, YOU EXPERIENCE A CERTAIN IMPACT OR INFLUENCE OF FORCE AGAINST YOR PALMS. THIS IS BECAUSE A MOVING BODY HAS MOEMENTUM. THE MAGNITUDE OF THE MOMENTUM DEPENDS UPON TWO FACTORS:
1. THE MASS OF THE OBJECT (M)
THE MORE THE MASS (i.e., THE HEAVIER THE BODY), THE GREATER IS THE MOMENTUM POSSESSED BY THE BODY.
2. THE VELOCITY WITH WHICH THE BODY IS MOVING (V)
A BODY, MOVING WITH A HIGH VELOCITY, HAS A GREATER MOMENTUM.
Tuesday, March 2, 2010
KINEMATICS
KINEMATICS IS A BRANCH OF MECHANICS THAT STUDIES THE MOTION OF BODIES .A MOVING BODY IS ONE THAT CONTINOUSLY CHANES IT'S POSITION WITH RESPECT TO THE OBSERVER OR RECPECT TO ITS SRROUNDINGS .THERFORE IN ORDER TO STUDY OF PROPERTIES THE MOVING BODIES ,THE TIME TAKEN FOR CHANGES IN POSITION HAS TO BE MESURED AND RECORDED
VERY FEW THINGS MOVE AT THE SAME SPEED FOR LONG. MOVING CARS, AEROPLANES, PEOPLE AND ANIMALS ALL EVENTUALLY SPEED UP OR SLOW DOWN. ACCELERATION MEANS THAT A GREATER DISTANCE IS COVERED IN A SHORTER TIME. IN FACT, NEARLY EVERYTHING IN THE UNIVERSE IS CONSTANTLY ACCELERATING OR DECELERATING.
SPEED
SPEED IS DEFINED AS THE DISTANCE TRAVELLED BY A BODY IN UNIT TIME (1 SECOND OR 1 MINUTE OR 1 HOUR). SPEED IS A SCALAR QUANTITY.
DISTANCE
IT IS THE ACTUAL LENGTH OF THE PAT TAKEN BETWEEN TWO POINTS .THIS ACTUAL PATH NEED NOT HAVE FIXED DIRECTION
DISPLACEMENT
DISPLACMENT IS THE SHORTEST LEGHT IN A GIVEN DIRECTION BETWEEN TWO POINTS
VELOCITY
IS THE DISTANCE TRAVELLED BY A BODY IN UNIT TIME IN A GIVEN DIRECTION .VELOCITY IS A VECTOR QUANTITY.
ACCELERATION
ACCELERATION IS THE RATE OF CHANGE OF VELOCITY
GRAVTATIONAL ACCELERATION
GRAVITY IS THE FROCE WHICH PULLS ALL BODIES TOWARDS THE CENTRE OF THE EARTH KEEPS THE PLANET REVOLING ROUND THE SUN IN DEFINITE PATHS AND IS RESPONSIBLE FOR THE WEIGHT OF ALL OBJECTS. WHEN THE BODY IS RELEASED FROM A HEIGHT ,ITS VELOCITY INCRESES AS GRAVITATIONAL FORCE PULLS IT TOWARDS THE EARTH.
VERY FEW THINGS MOVE AT THE SAME SPEED FOR LONG. MOVING CARS, AEROPLANES, PEOPLE AND ANIMALS ALL EVENTUALLY SPEED UP OR SLOW DOWN. ACCELERATION MEANS THAT A GREATER DISTANCE IS COVERED IN A SHORTER TIME. IN FACT, NEARLY EVERYTHING IN THE UNIVERSE IS CONSTANTLY ACCELERATING OR DECELERATING.
SPEED
SPEED IS DEFINED AS THE DISTANCE TRAVELLED BY A BODY IN UNIT TIME (1 SECOND OR 1 MINUTE OR 1 HOUR). SPEED IS A SCALAR QUANTITY.
DISTANCE
IT IS THE ACTUAL LENGTH OF THE PAT TAKEN BETWEEN TWO POINTS .THIS ACTUAL PATH NEED NOT HAVE FIXED DIRECTION
DISPLACEMENT
DISPLACMENT IS THE SHORTEST LEGHT IN A GIVEN DIRECTION BETWEEN TWO POINTS
VELOCITY
IS THE DISTANCE TRAVELLED BY A BODY IN UNIT TIME IN A GIVEN DIRECTION .VELOCITY IS A VECTOR QUANTITY.
ACCELERATION
ACCELERATION IS THE RATE OF CHANGE OF VELOCITY
GRAVTATIONAL ACCELERATION
GRAVITY IS THE FROCE WHICH PULLS ALL BODIES TOWARDS THE CENTRE OF THE EARTH KEEPS THE PLANET REVOLING ROUND THE SUN IN DEFINITE PATHS AND IS RESPONSIBLE FOR THE WEIGHT OF ALL OBJECTS. WHEN THE BODY IS RELEASED FROM A HEIGHT ,ITS VELOCITY INCRESES AS GRAVITATIONAL FORCE PULLS IT TOWARDS THE EARTH.
MOTION
ONE OF THE MOST IMPORTANT SCIENTIFIC ACHIVEMENTS IN THE 17TH CENTURY HAS BEEN THE UNDERSTANDING MOTION .MOTION OCCURS WHEN AN OBJCT CHANGES ITS POSITION
ONE OF THE REASONS WHY THE EARLY SCOLARS COULD NOT STUDY THE PROPITIES OF MOVING WAS THE LACK OF AN ACCURATE CLOCK .WITHOUT A GOOD CLOCK THE TIME TAKEN FOR CHANGES IN POSITION COULD NOT BE MESURED AND OBSERVATIONS COULD NOT BE RECORDED .
THE ITALIAN SCIENTIST GALILEO WHO FIRST INVENTED A REASONABLY ACCURATE CLOCK .OR CURRANT KNOWLEDGE OF MOTION IS BASED ON THE LAWS PUT FORTH BY THE ENGLISH SCIENTIST SIR ISAAC NEWTON
UNTERSTANDING MOTION
MOTION IS THE CHANGE IN POSITION OF AN OBJECT WITH RESPECT TO THE OBSERVER .MOTION OCCURS WHEN AN OBJECT CHANGES ITS POSITION .MOTION IS RELATIVE WITH RESPECT TO THE OBSERVER
TYPES OF MOTION
1)TRANSALATORY MOTION -IS THAT IN WHICH ALL THE PARTICLES MOVE THROUGH THE SAME DISTANC IN THE SAME TIME
IN TRANSALOTARY MOTION THERE ARE TWO OTHER MOTION WHICH ARE
a)RECTILINER MOTION - IN RECTILINEAR MOTION THE BODY MOVES IN A STRAIGHT LINE
b)CURVILINEAR MOTION - IN CURVILINEAR MOTION THE BODY MOVES ALONG A CURVE LINE
2)ROTATRY MOTION-I THAT IN WHICH IN WHICH A BODY MOVES ABOUT A FIXED AXIS WITHOUT CHANGING ITS POSITION
3)OSCILLATORY MOTION -IS THAT IN WHICH A BODY MOVES TO AND FRO ABOUT ITS MEAN POSITION
4)VIBRATORY MOTION -IF THE OSCLLATRY MOTION IS VERY RAPID OR FAST ,IT IS CALL VIBRATORY MOTION
5)TIME MOTION -THE TIME TAKEN FOR ONE OSCILLATION IS CALLD TIME PERIOD
6)PERIODIC MOTION -TPERIODIC MOTION IS THAT WHICH REPEATS AFTER REGURAL INTERVALS OF TIME
THESE ARE SOME OF THE MOTION
ONE OF THE REASONS WHY THE EARLY SCOLARS COULD NOT STUDY THE PROPITIES OF MOVING WAS THE LACK OF AN ACCURATE CLOCK .WITHOUT A GOOD CLOCK THE TIME TAKEN FOR CHANGES IN POSITION COULD NOT BE MESURED AND OBSERVATIONS COULD NOT BE RECORDED .
THE ITALIAN SCIENTIST GALILEO WHO FIRST INVENTED A REASONABLY ACCURATE CLOCK .OR CURRANT KNOWLEDGE OF MOTION IS BASED ON THE LAWS PUT FORTH BY THE ENGLISH SCIENTIST SIR ISAAC NEWTON
UNTERSTANDING MOTION
MOTION IS THE CHANGE IN POSITION OF AN OBJECT WITH RESPECT TO THE OBSERVER .MOTION OCCURS WHEN AN OBJECT CHANGES ITS POSITION .MOTION IS RELATIVE WITH RESPECT TO THE OBSERVER
TYPES OF MOTION
1)TRANSALATORY MOTION -IS THAT IN WHICH ALL THE PARTICLES MOVE THROUGH THE SAME DISTANC IN THE SAME TIME
IN TRANSALOTARY MOTION THERE ARE TWO OTHER MOTION WHICH ARE
a)RECTILINER MOTION - IN RECTILINEAR MOTION THE BODY MOVES IN A STRAIGHT LINE
b)CURVILINEAR MOTION - IN CURVILINEAR MOTION THE BODY MOVES ALONG A CURVE LINE
2)ROTATRY MOTION-I THAT IN WHICH IN WHICH A BODY MOVES ABOUT A FIXED AXIS WITHOUT CHANGING ITS POSITION
3)OSCILLATORY MOTION -IS THAT IN WHICH A BODY MOVES TO AND FRO ABOUT ITS MEAN POSITION
4)VIBRATORY MOTION -IF THE OSCLLATRY MOTION IS VERY RAPID OR FAST ,IT IS CALL VIBRATORY MOTION
5)TIME MOTION -THE TIME TAKEN FOR ONE OSCILLATION IS CALLD TIME PERIOD
6)PERIODIC MOTION -TPERIODIC MOTION IS THAT WHICH REPEATS AFTER REGURAL INTERVALS OF TIME
THESE ARE SOME OF THE MOTION
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