physics impulse/momentum/PE/KE

Linear momentum

The product of a system’s mass and velocity

Impulse

Average net external force multiplied by the time the force acts; equal to the change in momentum

Impulse-momentum theorem

The impulse, or changes in momentum, is the product of the net external force and the time over which the force acts impulse

Isolated system

System in which the net external force is zero. Energy and mass are constant

Closed system

System in which mass is constant, but energy may not be

Law of conservation of momentum

When the net external force force is zero, the total momentum of the system is conserved or constant

Inelastic collision

Collision in which object stick together after impact and kinetic energy is not conserved

Elastic collision

Collision in which objects separate after impact and kinetic energy is conserved

Change in momentum

The difference between the final and industrial values of momentum; the mass times the change in velocity

Momentum

Quantity of motion

Stick together

Perfectly inelastic collision

Conserve quantities

Matter, energy, momentum, charge