Learning Power to an object Gravity Frictional force Vertical drag Pressure The movement of the object The movement of the speed to change The movement and power Game Blanks game Falling ball game Panel Question Tug of war game Shuffle game Look for a tag Quiz Quiz 1 Quiz 2 Site map Site map

Uniform straight-line motion Like the left figure, we say exercise to advance with the constant speed over a straight line with uniform straight-line motion.   A law of the inertia   When the upper movie carries a coin on board and takes the paper which I put on a glass quickly, the coin falls in a glass. Such a property is called inertia. Dharma shooting   The upper movie lost one phase of Dharma doll. This is because an effect standing still continues standing still.