Deformation & Fluid Pressure
Explain forces associated with deforming objects (elastic and inelastic deformation), thermal expansion and contraction of materials, and how fluid pressure acts in all directions and increases with depth
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If your child noticed the lid on a jar was very tight, could they explain why running it under hot water helps — and what's happening to the metal as it heats up?
Explain forces associated with deforming objects (elastic and inelastic deformation), thermal expansion and contraction of materials, and how fluid pressure acts in all directions and increases with depth
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Check understanding
- Distinguishes elastic deformation (returns to shape) from inelastic/plastic deformation (permanently changed)
- Explains why bridges and railway tracks have expansion gaps
- Explains why pressure increases with depth in a liquid (e.g. why deep-sea divers need pressure suits)
- Gives an everyday example of thermal expansion causing a problem or being used usefully
“If your child noticed the lid on a jar was very tight, could they explain why running it under hot water helps — and what's happening to the metal as it heats up?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Forces & Motion
- Age range
- Ages 12–13
Standards