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  1. Hewitt-Drew-it! PHYSICS 25. Conservation of Momentum
      Flip
    • What causes change in the momentum of an object?
      1. an impulse
      Flip
    • Only an ____________ impulse changes momentum.
      1. external
      Flip
    • The total momentum of a system always remains unchanged. This is called __________ of momentum.
      1. conservation
      Flip