A-level Physics/Forces, Fields and Energy/Appendix of Formulae
Formulae by Section
editThis is the list of required formulae in the order that they appear in the OCR Syllabus for this module.
Dynamics | |
Momentum is mass times velocity. | |
Force is the rate of change of momentum with respect to time. | |
Work and Energy | |
Work is force times displacement | |
Kinetic energy is half of mass times velocity squared. | |
Potential energy is mass times acceleration due to gravity times height. (For situations near the surface of the earth only) | |
Circular Motion | |
Centripetal acceleration is velocity squared divided by the radius. | |
Centripetal force is mass times velocity squared divided by the radius. (You are expected to be able to derive this from and ). | |
Oscillations | |
Period is one over the frequency. | |
Acceleration is proportional to the negative displacement from the centre of oscillation. | |
Displacement from the centre of oscillation is amplitude times position in cycle. (When oscillation started at centre). | |
Displacement from the centre of oscillation is amplitude times position in cycle. (When oscillation started at one end). | |
Angular Velocity is 2 times over the time period. | |
Angular Velocity is 2 times times the frequency of oscillations. | |
Gravitational Fields | |
Force is Gravitational Force Constant ( ) times mass one times mass two over radius squared. |
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