Forces' basics

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  • Created by: Ambrastic
  • Created on: 18-03-17 16:16

1. The degrees of freedom are..

  • Less than six in a fixed surface, over six in a three-dimensional space
  • One in a fixed surface, over than six in a three-dimensional space
  • Six in a fixed surface, three in a three-dimensional space,
  • Three in a fixed surface, three in a three-dimensional space
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2. Friction's formula is

  • Fr=ma
  • F=fa
  • F=ma
  • F=-ma

3. Friction is the force that...

  • makes it easier to slide materials against each other
  • moves a body at rest
  • resists the motion of materials sliding against each other
  • resists the motion of fluids sliding against each other

4. Newton's formula is...

  • N=1k
  • N=1kgm/s^2
  • N=1gm/s^2
  • N=1kg^2m/s

5. Deformation can be

  • Elastic, permanent; plastic, temporary
  • Elastic, reversible; plastic, non-reversible
  • Elastic, temporary; plastic, permanent
  • Elastic, non-reversible; plastic, reversible
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