- Posted by Max in Sixth Grade |
- November 13th, 2009 |
Language Arts
- Introduction to Stories and Speeches
- Stories and Speeches
- Introduction to Poetry
- A few Poems for Sixth Grade
- Introduction to Mythology
- Classical Myths about Love
- Introduction to Language and Literature
- Language Learning
- Literature Learning
- Introduction to Sayings
- Sayings and Phrases
- Foreign Words and Phrases
Geography, World Civilization And American Civilization
- Introduction to Geography
- Geography
- Introduction to World Civilization
- World Civilization
- Europe
- The British Empire
- Africa
- Japan
- Introduction to American Civilization
- American Civilization
- World War II
- Allies Become Enemies
- American Life in the 1950s
- Segregation and Civil Rights
- The Turbulent Sixties and After
Fine Arts
- Introduction to Fine Arts
- Music
- Sharp, Flats and More About Harmony
- Visual Arts
Mathematics
- Introduction to Sixth Grade Mathematics
- Sixth grade Mathematics
- Place Value, Estimation
- Expression, Exponents, Expanded Notation, Order of Operations
- Division
- Fractions
- Fractions, Mixed Numbers and Decimals
- Measurement
- Proportion, Percent
- Geometry
- Area and Volume
- Integers
- Probability
- Mean, Median, Range and Mode
Natural Sciences
- Introduction to Life Sciences
- Life Sciences
- Introduction to Physical Sciences
- Physical Sciences
- Sound
- Chemistry
- Wonders of Water
- Stories of Scientists
- Posted by Max in Fifth Grade |
- November 13th, 2009 |
Language Arts
- Introduction to Stories and Speeches
- Stories and Speeches
- Introduction to Poetry
- A few Poems For Fifth Grade
- Introduction to Language and Literature
- Language Learning
- Literature Learning
- Introduction to Sayings
- Sayings and Phrases
Geography, World Civilization and American Civilization
- Introduction to Geography
- Geography of the United States
- Introduction to World Civilization
- World Civilization
- Introduction to American Civilization
- American Civilization
Fine Arts
- Introduction to the Fine Arts
- Music
Mathematics
- Introduction to Fifth Grade mathematics
- Fifth Grade Mathematics
- Whole Numbers
- Decimals – Addition, Subtraction and Multiplication
- Division
- Decimal Division
- Fractions
- Measurement
- Plane Figure
- Area
- Ratio, Scale, Percent, Average, Graphs
- Rectangular Prisms and Cubes
- Volume
- Rates and Speed
- Functions and Equations
Natural Sciences
- Introduction to Life Sciences
- Life Sciences
- Introduction to Physical Sciences
- Physical Sciences
- Transferring Heat Energy
- Electricity
- Motion, Engines and Motors
- Stories of Scientists
- Posted by Max in Fourth Grade |
- November 13th, 2009 |
Language Arts
- Introduction to Stories and Speeches
- Stories and Speeches
- Introduction to Poetry
- A Few Poems for Fourth Grade
- Introduction to Mythology
- Myths from Medieval England
- Introduction to Language and Literature
- Language Learning
- Literature Learning
- Introduction to Sayings
- Sayings and Phrases
Geography, World Civilization and American Civilization
- Introduction to Geography
- Geography
- Introduction to World Civilization
- World Civilization
- Introduction to American Civilization
- American Civilization
Fine Arts
- Introduction to Fine Arts
- Music
- Visual Arts
Mathematics
- Introduction to Fourth Grade Mathematics
- Fourth Grade Mathematics
- Numbers Through Millions
- Geometry – I
- Multiplication
- Geometry – II
- Division – I
- Division – II
- Roman Numerals, Time
- Fractions
- Decimals
- Probability, Changing Units of Measurement, World Problems
- Geometry – III
Natural Sciences
Introduction to Life Sciences
- Life Sciences
- The History of the Earth and Its Life Forms
- The Human Body and Health
- Introduction to Physical Sciences
- Physical Sciences
- Posted by Steven in Mechanics |
- November 12th, 2009 |
MOTION
Science of motion is a very important aspect of the branch of physics. It is a common rule of the physical world. But before having a thorough discussion on this topic one must have a common concept in his /her mind that, practically every motion is in a relative state. The motion we are talking about is depending on the place occurred by the object & the observer at that particular time.
Comparative discussion between Rest & Motion:
When do we call an object that if it is in rest or motion? Again, I have to tell you it is dependency on the way or view we are considering from. Suppose there is flower vase on the table. If after few seconds we are seeing that particular object in the same place we can tell that the flower vase is in rest.
Actually we are considering the object with the relative frame of the room. So mathematically, the co-ordinates are not changing with time. So we are seeing that particular vase in the same place. But if we will consider that object from the moon or from any place outside the earth we will notice that the object is changing place with time, as earth is moving!
Hence we can infer from the above mentioned fact that ,there is no absolute rest / absolute motion. This is what depending on the frame of the viewer & object.
If relatively the object and the observer is not changing place we can tell, the object is in rest or if it is changing the object is in motion.
Another instance to describe the science of motion and rest is like that ,when two friends are going by a car the substances in the car are not moving with respect to the boys. But the substances are changing with the frame of places where the car is moving. So with respect to the boys we can say the objects are in rest but in motion with the frame of places.
So to locate a particular object we need some co-ordinates(x,y,z) that is called frame of reference. We cannot tell whether an object is in motion unless we have a frame of reference. A reference frame is another substance with respect to which we compare another object’s position.
The branch of Physics, dealing with the nature of moving objects is known as mechanics. Mechanics is divided into two parts namely Kinematics and Dynamics. Kinematics deals with the study of motion without taking into consideration the cause of motion, while Dynamics is dealing with the cause of motion, that is force.
Here we are concerned about the kinematics only.
Distance and Displacement
Suppose a particular object is traversing from point A at time t1 to point B at time t2 via the path A-C-D-B. So the time taken by the object to reach from A to B is (t2-t1).
Here we can tell that the distance traversed will be A-C-D-B. But the displacement will be A-B.
The length of the path A-C-D-B is called the distance during the time interval t1 and t2. It’s a scalar quantity as it considers the magnitude only.
The magnitude of the displacement is the length of the straight line joining the initial and final position i.e. A – B. It’s a vector quantity as it is considering both the magnitude and direction. It follows triangle rule for vector addition too.
Eva is taking a path from West Gate to East Gate i.e. of 100 m long. Alan is also going from West gate to East gate but he is taking a different way i.e. elongated too. Here from the above diagram we can see the fact. Here the displacement is same for both of them. But the distance traveled by Alan is much more than Eva.
- Posted by Max in Curriculum |
- November 11th, 2009 |
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