Fichas
Physics Equations
Fichas del conjunto (12)
- 1Equations WORK DONEWork Done
= Force x Distance
Work in Joules, Force in Newtons, Distance in Metres - 2—Work Done?
work done = force x distance
work done = 15N x 20m
work done = 300Nm
work done = 300Joules! - 3Equations MOMENTS DEFINITIONMoments
If a force acts on an object with a pivot, it creates a turning force, which we call a moment - 4Equations MOMENTSMoments
Moment = Force x Perpendicular Distance
Perpendicular distance is measured from the line of action of the force to the pivot (axis of rotation) - 5—Moments?
moments = force x distance
moments = 10N x 0.15m
moments = 1.5Nm!
- 6Equations MOMENTSEffort is force applied, Load is force of machine being turned.
- 7Equations PRINCIPLE OF MOMENTSPrinciple of Moments
In equilibrium, the total anticlockwise moment = the total clockwise moment - 8Equations CENTRE OF MASS DEFINITIONThe centre of mass of an object is the point at which its mass is concentrated. If the object was suspended, the CoM would be directly below the point of suspension. If it's symmetrical the CoM will be on axis of symmetry
- 9Equations STABILITY DEFINITIONStability
An object is stable till its line of action (vertical) passes its base. The centre of mass must be vertically above the base area or it will topple due to the weight causing a moment in the corner. - 10Equations INCREASING STABILITYIncreasing Stability
Objects with a lower centre of mass are more stable. To lower the centre of mass, the base area needs to be larger and the base heavier. - 11Equations PRESSURE
- 12Equations PRESSURE UNITSPressure Units
Force in Newtons
Area in Metres*
Pressure in N/m*, or 'Pascals'
Pressure is the same everywhere in a fluid
Información
- Descripción
- GCSE Physics Fichas sobre Physics Equations, creado por Last-minute-crammer el 28/05/2014.
- Creado por
- Last-minute-crammer
- Visitas
- 99
- Etiquetas
- Valoración