# Newton laws and momentum

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• Created by: Bex24
• Created on: 09-03-16 21:28
Define newtons first law
A force is required to change te state of rest or uniform motion in a straight line of a body
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Define newtons second law
The rate of change of momentum of an object is directly proportional to the net force acting on it
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Define newtons third law
When body A exerts a force on body B, body B exerts a force on body A that is equal. opposite and of the same type
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define linear momentum
Mass of an object multiplies by its velocity
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Is the net force on a body = to the rate of change of momentum
yes
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Define the impulse
Force X time for which the fact acts
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Define mass
the inertia of an object
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What is the area under a force time graph = to?
impluse
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What is hte impulse = to
Change in momentum
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What is the principle of the conservation of momentum
In any direction in the absence of the external forces the total momentum of a system remains constant
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Define perfect elastic collsion
Momentum and kinetic energy are conserved
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Define inelastic collision
momentum is conserved but kinetic energ is lost
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## Other cards in this set

### Card 2

#### Front

Define newtons second law

#### Back

The rate of change of momentum of an object is directly proportional to the net force acting on it

### Card 3

#### Front

Define newtons third law

### Card 4

#### Front

define linear momentum

### Card 5

#### Front

Is the net force on a body = to the rate of change of momentum