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Momentum An object's ability to resist change in its motion. Equation- P=mv P- momentum m- mass v- velocity Unit- kgm/s ** An object must be moving to have momentum.
Impulse A Change in momentum Equation(s) I=F*t I - impulse F - force t - time I=m∆V m - mass ∆V - change in velocity Unit: kgm/s
Elasticity The measurement of how much a collision conserves energy. 100% elasticity = perfectly elastic collision 0% elasticity = perfectly inelastic collision Most collisions fall in between!
Elastic Collisions Momentum AND Energy are conserved within the system. *Identified by bouncing. Start and End with two individual objects.
Inelastic Collisions Momentum IS conserved Energy IS NOT conserved - energy lost to environment. *Identified by sticking/deformation within the system.Start with 2 objects End with 1 object.
Conservation of Momentum and Energy Momentum and Energy will be conserved within a system as long as no outside forces act on the system. Objects within the system can lose energy or momentum to one another or the environment but energy and momentum will be conserved as a whole.
Created by: becook87