venn diagram   3 videos

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  Ray Diagrams

  Physics Light

  Drawing the ray diagrams for convex and concave lenses.

  ray diagrams
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  Free-Body Force Diagrams

  Physics Newton's Laws of Motion

  Drawing and interpreting free-body force diagrams.

  free body force diagrams net force normal force
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  Electric Fields

  Physics Electricity

  Drawing and interpreting electric field diagrams

  electric fields