Momentum and collision

?
Whats the formula for momentum?
mass times velocity
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What is momentum?
p is a property of moving objects
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The greater the mass of an object and the greater its velocity the more?
momentum the object has
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Momentum is a vector quantity , it has?
size and direction
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Whats the formula?
momentum (kgm/s)=mass (kg) times velocity (m/s)
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What is the conservation of momentum?
momentum before-after
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In a closed system the total momentum before an event is the same as?
after event
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What is the closed system?
no external forces act
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Forces cause changes in?
momentum
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When a force acts on an object it causes?
A change in momentum?
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A larger force means?
a faster change of momentum
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If someones momentum changes very quickly the force on the body will be very large and more likely to cause?
injury
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This is why cars are designed with?
safety features that slow people down over a longer time when they have a crash-the longer it takes for a change in momentum the smaller the force
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Other cards in this set

Card 2

Front

What is momentum?

Back

p is a property of moving objects

Card 3

Front

The greater the mass of an object and the greater its velocity the more?

Back

Preview of the front of card 3

Card 4

Front

Momentum is a vector quantity , it has?

Back

Preview of the front of card 4

Card 5

Front

Whats the formula?

Back

Preview of the front of card 5
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