# CP I

### 8 terms by celstheseal

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Chapter 6

### momentum

a property of moving things and means inertia but in motion. p=mv. units: kgm/s or Ns

### impulse

the product of force and time. J=Ft. impulse is the change in momentum. units: kgm/s or Ns

### impulse changes momentum

the greater the impulse exerted on something, the greater the change in momentum

### bouncing

impulses are generally greater when objects bounce because it creates double impulse.

### conservation of momentum

states that in the absence of an external force, the momentum remains unchanged. momentum is not created or destroyed. Pi=Pf

### collisions

for all collisions momentum is conserved and in the abscence of external forces, net momentum before collisions is the same as the net momentum after the collision

### elastic collisions

occur when colliding objects rebound without lasting deformation/generation of heat

### inelastic collisions

occur when colliding objects result in deformation and/or generation of heat

Example: