BRAINCAKEForces and their effects
Revision notes for Forces and their effects in Edexcel Physics (1PH0). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.
- Forces: contact, non-contact and force pairsA force is a push or a pull, and it always acts between two objects.
- Vector and scalar quantitiesPhysical quantities fall into two types.
- Vector diagrams and scale drawingsA force can be drawn as an arrow.
- Free body force diagramsA free body force diagram shows all the forces acting on one object and nothing else.
- Resultant force and balanced forcesWhen several forces act on an object, they can be replaced by a single force with the same effect.
- Describe situations where forces can cause rotationA force can do more than push an object along.
- Moment of a forceA force can make an object turn about a fixed point called the pivot.
- The principle of momentsAn object that is not turning is in equilibrium.
- Levers and gearsA lever is a rigid bar that turns about a pivot.
- Lubrication and unwanted energy transferWhen two solid surfaces slide over each other, friction acts between them.