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REVISION MATERIAL FOR PHYSICAL SCIENCES DEFINITIONS: MOMENTUM

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Presentation on theme: "REVISION MATERIAL FOR PHYSICAL SCIENCES DEFINITIONS: MOMENTUM"— Presentation transcript:

1 REVISION MATERIAL FOR PHYSICAL SCIENCES DEFINITIONS: MOMENTUM
GRADE 12 2015

2 Momentum Momentum is the product of an object's mass and its velocity.

3 Newton's second law of motion in terms of momentum
The resultant/net force acting on an object is equal to the rate of change of momentum of the object in the direction of the resultant/net force.

4 Impulse Impulse is the product of the resultant/net force acting on an object and the time the resultant/net force acts on the object.

5 The impulse-momentum theorem
The impulse-momentum theorem Fnet Δt = mΔv.

6 A closed/an isolated system (in Physics)
A closed/an isolated system (in Physics), a system on which the resultant/net external force is zero (A closed/an isolated system excludes external forces that originate outside the colliding bodies, e.g. friction. Only internal forces, e.g. contact forces between the colliding objects, are considered).

7 The Principle of Conservation of Linear Momentum
The total linear momentum of a closed system remains constant (is conserved).

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