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AQA GCSE Product Design: 2.2 - Forces and Stresses

Forces Acting on Materials and Objects:

  • Tension - Forces causing an object to be stretched or pulled apart

    • e.g. tug of war

  • Compression - Pushing forces that squeeze an object

    • e.g. drink can, table, chair

  • Shear - Cutting by moving an object sideways and in opposite directions

    • e.g. scissors

  • Bending - Forces causing an object to bend

    • e.g. ruler

  • Torsion - Twisting forces on an object

    • e.g. cars

Enhancing Materials

  • In order to resist forces and stresses.

  • Rope -

    • Stretchy twisted strands

    • Resistant against tension

  • Concrete -

    • Steel bars

    • High compressive strength and tension resistance

  • Fabrics -

    • Contain strips of another material

  • Timbers -

    • Laminating 2 pieces together

    • Resistant against tension, bending, and compression.

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AQA GCSE Product Design: 2.2 - Forces and Stresses

Forces Acting on Materials and Objects:

  • Tension - Forces causing an object to be stretched or pulled apart

    • e.g. tug of war

  • Compression - Pushing forces that squeeze an object

    • e.g. drink can, table, chair

  • Shear - Cutting by moving an object sideways and in opposite directions

    • e.g. scissors

  • Bending - Forces causing an object to bend

    • e.g. ruler

  • Torsion - Twisting forces on an object

    • e.g. cars

Enhancing Materials

  • In order to resist forces and stresses.

  • Rope -

    • Stretchy twisted strands

    • Resistant against tension

  • Concrete -

    • Steel bars

    • High compressive strength and tension resistance

  • Fabrics -

    • Contain strips of another material

  • Timbers -

    • Laminating 2 pieces together

    • Resistant against tension, bending, and compression.