Accelation

Accelation is the rate of change of velosity, it means to increasing speed or decreasing speed or changing direction.

Balance and unbalance forces.
  Forces occur in pairs, it could be either balance or unbalance.
-Forces in the opposite direction combine by subtraction.
-Balance force do not cause a change in motion.

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Physic

Motion
Event that involves a change in position or location of something.

Type of motion
-Uniform motion = Constant speed in a straight line.
-Accelerated motion = Motion that is changing in direction or speed.
-Circular motion = Speed is constant but the direction of motion is changing continuously.

Vector and scalar quantities.
Vector- A quantity that has both magnitude and direction is called vector quantity.
Scalar- A quantity that has only magnitude or direction is called scalar quantity.

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Physic sombol

Length
1km= 1000m

1m= 100cm

1m= 1000mm

1cm= 10mm

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