The momentum of an object is given by the equation:
momentum = mass x velocity or p=mv
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Momentum Momentum is measured in kg m/s or kg m s-1
But can also be measured in Ns
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If no external forces are acting, momentum is conserved.
the total momentum before = the total momentum after
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What are the two types of momentum? Is momentum conserved?
Elastic and Inelastic. Momentum is conserved in both.
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Define 'Elastic Collisions'
kinetic energy in conserved, no energy is transferred to the surroundings. If a ball is dropped, hits the floor and bounces back to the same height it would be an elastic collision with the floor. The kinetic energy is the same.
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Define 'Inelastic Collisions'
kinetic energy is not conserved, energy is transferred to the surroundings If a ball is dropped, hits the floor and bounces back to a lower height than released it would be an inelastic collision. The kinetic energy before is greater.
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Other cards in this set
Card 2
Front
But can also be measured in Ns
Back
Momentum Momentum is measured in kg m/s or kg m s-1
Card 3
Front
the total momentum before = the total momentum after
Back
Card 4
Front
Elastic and Inelastic. Momentum is conserved in both.
Back
Card 5
Front
kinetic energy in conserved, no energy is transferred to the surroundings. If a ball is dropped, hits the floor and bounces back to the same height it would be an elastic collision with the floor. The kinetic energy is the same.
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