BRAINCAKEForces and matter
Revision notes for Forces and matter in Edexcel Combined Science (1SC0). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.
- Forces needed to change the shape of an objectA single force on an object usually just makes it move.
- Elastic and inelastic distortionWhen forces change the shape of an object, we say the object is distorted.
- Linear elastic distortion and the spring constantFor many springs, the extension is directly proportional to the force applied, as long as the spring is not stretched too far.
- Work done in stretching a springWhen you stretch a spring you do work on it.
- Linear and non-linear force-extension relationshipsA force-extension graph has force on the vertical axis and extension on the horizontal axis.
- Core practical: force, extension and work done for a springAim: to investigate how the extension of a spring depends on the force applied, and to find the work done in stretching it.
- Calculating stored energy and converting unitsWhen a spring is stretched, work is done on it and energy is stored.