Tuesday, August 31, 2010
Singapore Math
I finally started Math tutorials at Tutorlink last Sunday. I started with a review of addition and subtraction and problem solving. Thanks mom and dad! And check out my facebook for the pictures of my visit to Cavite yesterday.
Monday, August 23, 2010
Newton's Laws of Motion
Newton's First Law
Newton's First Law was actually formulated by Galileo many years previous. It is called the Law of Inertia and states:
Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
Another way of stating this law in more detail is:
If an object is motionless, it will stay motionless unless acted upon by some force.
If an object is moving at a constant speed or velocity, it will continue at that speed unless acted upon by some force along the line of motion.
If an object is moving, it will move in a straight line unless acted upon at an angle by some force.
The Law of Inertia assumes there is no friction or other resistive force that can slow down an object. Inertia can be best demonstrated in outer space.
Newton's Second Law
The second law is sometimes called the Law of Acceleration, because it concerns forces and what causes objects to move. It can be stated as:
The acceleration of an object of constant mass is proportional to the force acting upon it.
Acceleration is the changing of the velocity of the object. Usually, we are talking about the object speeding up. The word "deceleration" is usually used when the object is slowing down, but that also is acceleration or changing of the velocity.
A force is a push or pull on the object. It may pushing in direct contact or pulling at a distance in the case of gravity.
This law determines the relationship between force, mass and acceleration, which is
F = ma
where:
F is the applied force
m is the constant mass
a is the resulting acceleration
ma is m times a
Note that the force F and acceleration a are in the same direction. Since they have a direction, they are called vectors.
What this law says is that while you are applying a force on an object, it will continue to accelerate or change its velocity. It also states that the greater the force on an object, the greater the acceleration.
Newton's Third Law
Newton's Third Law is sometimes called the Law of Reciprocal Actions or the Action-Reaction Law:
Whenever one body exerts force upon a second body, the second body exerts an equal and opposite force upon the first body.
This is often stated as: "For every action there is an equal and opposite reaction."
Newton's First Law was actually formulated by Galileo many years previous. It is called the Law of Inertia and states:
Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
Another way of stating this law in more detail is:
If an object is motionless, it will stay motionless unless acted upon by some force.
If an object is moving at a constant speed or velocity, it will continue at that speed unless acted upon by some force along the line of motion.
If an object is moving, it will move in a straight line unless acted upon at an angle by some force.
The Law of Inertia assumes there is no friction or other resistive force that can slow down an object. Inertia can be best demonstrated in outer space.
Newton's Second Law
The second law is sometimes called the Law of Acceleration, because it concerns forces and what causes objects to move. It can be stated as:
The acceleration of an object of constant mass is proportional to the force acting upon it.
Acceleration is the changing of the velocity of the object. Usually, we are talking about the object speeding up. The word "deceleration" is usually used when the object is slowing down, but that also is acceleration or changing of the velocity.
A force is a push or pull on the object. It may pushing in direct contact or pulling at a distance in the case of gravity.
This law determines the relationship between force, mass and acceleration, which is
F = ma
where:
F is the applied force
m is the constant mass
a is the resulting acceleration
ma is m times a
Note that the force F and acceleration a are in the same direction. Since they have a direction, they are called vectors.
What this law says is that while you are applying a force on an object, it will continue to accelerate or change its velocity. It also states that the greater the force on an object, the greater the acceleration.
Newton's Third Law
Newton's Third Law is sometimes called the Law of Reciprocal Actions or the Action-Reaction Law:
Whenever one body exerts force upon a second body, the second body exerts an equal and opposite force upon the first body.
This is often stated as: "For every action there is an equal and opposite reaction."
Tuesday, August 17, 2010
Famous Foreign Scientists and their discoveries
Galileo Galilee
Albert Einstein
Anthony van Leewanhooek
Albert Einstein
Anthony van Leewanhooek
Tuesday, August 10, 2010
Who are behind all these Things?
The third Science module features some famous foreign scientist and their contributions together with our very own scientist. This also features the qualities that made these scientist what they are now.
Like other countries, the Philippines can be proud of many men and women who contributed a lot in the field of science. It was a Filipino who invented the fluorescent bulb which is being used in all parts of the world It was a Filipino who designed the light vehicle that was used in exploring the surface of the moon for the first time. It was also a Filipino who developed the embryo culture technique for propagating coconut trees that make all macapuno nuts
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