Momentum: the amount of physical direction is heading in the same direction and
speed of the body expressed as body mass Bhasal hit in speed.
* Strengths: time rate of change in the amount of movement.
* Payment: is the amount of bound equal to the product of the force acting at the time of impact.
* Strengths: time rate of change in the amount of movement.
* Payment: is the amount of bound equal to the product of the force acting at the time of impact.
* Average thrust: the force is fixed in the body if affected during the same period of time that affect the changing power earned him the same amount of pay.
* Theory of payment - the amount of move: You will pay caused by power collected in the body during a period of time equal to the change in the amount of body movement during that period.
* System: a set of particles that affect each other in some.
* Closed or isolated system: a set of objects that remain constant throughout the mass of any operation, and the only forces that affect the closed system isolated are the forces exchanged between the objects or particles within the system.
* Body Gassae: is the body that do not change the dimensions of engineering at the points where the impact of forces such as: metal balls.
* Body is Gassae: is the body that change the dimensions of engineering at the points where the impact of forces such as a piece of wet dough.
* Center of mass: a set of objects that can be replaced by a bullet body mass equal to the total mass of objects and the subject in the center of mass collection of objects in the system.
* The text of the law of conservation of momentum: "If the outcome of the external forces affecting the collection of objects, including a reciprocal effect in a closed system = zero, the total amount of movement of these objects remains constant amount and direction before and after the mutual influence."
* Collision: the impact of exchange between two objects, one or more mobile so that at least a temporary reaction is between him and the other the body through the exchange of impact forces pay as Newton's third law, which occurs during a very short period.
* The time of the collision: the time of the impact of the forces exchanged between the colliding objects.
* Collision flexible: the collision, which is the kinetic energy of the college and also the amount of move reserved, meaning that there is no loss in kinetic energy of the system as the amount of before and after the collision is fixed and separated objects ceased immediately after the collision without that happening to them any change in shape and temperature Example : The collisions between atomic particles collisions flexible.
* Inelastic collision: A collision in which the amount of reservation and the reservation to move the energy of movement, where the proportion of the kinetic energy lost a very large and the objects ceased to unite together Almtsadman Akunan any one body after the collision.
* Relative speed: the speed at which one of them seems to be moving in when the body is made of the relative speed with the other two cars traveling the same speed and in the same direction is equal to zero.
* Regression coefficient: the ratio between the vertical speed of the vehicle relative to the two objects after the collision to the vehicle speed relative to the vertical of the two objects before the collision.
* Conductive materials: The materials that contain free shipments.
* Current terminology: has come to represent the direction of electric current in the circuit towards the movement of positive charges is contrary to the actual direction of movement of electrons in metallic conductors, which is called stream-mail.
* Current density: the result of dividing the intensity of electric current on-sectional area of Mosul, the intensity of electric current density is measured in unit w 1 A / m 2.
* Ohm's law: the intensity of the power density of direct proportion to the intensity of the electric field inside the moving metallic conductors and symbolized by the
"W = T / A"
* Electrical resistance: the reluctance expressed by the connector for the passage of the current resistance of Mosul.
* Resistivity: conductor resistance of a length of 1 m and cross section area of cross 13 o'clock ².
* Connectors with a linear resistance (ohmic) conductors that are applied by the law of Ohm.
* Electrical resistance: the reluctance expressed by the connector for the passage of the current resistance of Mosul.
* Resistivity: conductor resistance of a length of 1 m and cross section area of cross 13 o'clock ².
* Connectors with a linear resistance (ohmic) conductors that are applied by the law of Ohm.
ليست هناك تعليقات:
إرسال تعليق