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WorksheetsMomentum and collisions
Total questions: 6
Worksheet time: 5mins
The principle of conservation of momentum:
momentum before is same as momentum after
If no net external forces, the total momentum in a system remains unchanged
the total momentum in a system remains unchanged
If no net external forces, the total initial momentum in a system is equal to the total final momentum of the system
What are the different types of collisions?
elastic
perfectly inelastic
inelastic
completely inelastic
In elastic collisions,
momentum is conserved
kinetic energy is conserved
kinetic energy is not conserved
momentum is not conserved
In inelastic collisions,
momentum is conserved
kinetic energy is conserved
momentum is not conserved
kinetic energy is not conserved
In perfectly inelastic collisions,
momentum is conserved
kinetic energy is conserved
momentum is not conserved
kinetic energy is not conserved
colliding objects stick together
Why are cars made of heavy metal extreriors unsafe compared to those made from fiberglass?
accidents involving fiberglass cars take longer to complete
heavy metal cars have a higher momentum change compared to similar firberglass cars of the same masses and moving at the same velocities
A higher deforming force is experience by occupants of a heavy metal car during an accident
fiberglass has an added component called Zithropod which offers more safety during accidents
