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REVIEW forces and machines

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  • Is it "contact" or "non contact force"?
    It is "contact force".
  • What is a force?
    A force is the push and pull applied on an object.
  • Name 3 machines that need "contact forces".
    A car, a bike, a computer...
  • It is a force that attracts the objects to the ground.
    It is gravity.
  • Do "non contact forces" need physical contact?
    No
  • What are contact forces?
    Forces when two objects have a physical contact with each other.
  • Is it "contact" or "non contact force"?
    It is "contact force".
  • Is it "contact" or "non contact force"?
    It is "non contact force".
  • How do we call this force?
    It is magnetism.
  • Is it "contact" or "non contact force"?
    It is "non contact force". It is gravity.
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