AQA GCSE Design and Technology · 8552
Paper 1
Revise: Force magnitude and directionA rod being pushed is in compression; one being pulled is in tension. For example, pulling a control rod in a mechanical toy can move a connected part elsewhere in the toy. A suitable rigid rod can transmit both a push and a pull, whereas a flexible brake cable transmits a pull.
- Revise: Resisting forces and stresses
A pushing action that tends to squash or shorten a material.