Karteikarten
Physics formulae
Karten in diesem Stapel (42)
- 1average speedtotal distance / total time
or
(u + v) / 2 - 2accelerationa = (v-u) / t
- 3speed (from a distance-time graph)gradient of a distance-time graph
- 4acceleration (from a speed-time graph)gradient of speed-time graph
- 5distance travelled (from a speed-time graph)area under a speed-time graph
- 6Resultant forceF = ma
- 7Resultant force (from a free-body diagram)F = F(applied) - F(friction)
- 8weightW = mg
- 9densitydensity = m/V
- 10moment of a forcemoment = F d
(where d is perpendicular distance to F) - 11Principle of MomentsTaking moments about the pivot
total clockwise moments = total anti-clockwise moments - 12pressurepressure = F / A
- 13pressure of liquidpressure = hρg
- 14Pascal transmission of pressurepressure at piston A
= pressure at piston B - 15kinetic energy, KE
- 16gravitational potential energy, GPEGPE = mgh
- 17work donework done = F d
(where d is the distance travelled
parallel to F) - 18Principle of conservation of energy 1 (falling ball)loss of GPE = gain in KE
- 19Principle of conservation of energy 2 (throwing a ball up vertically)loss in KE = Gain in GPE
- 20Principle of conservation of energy 3 (car accelerating due to a force)gain in KE = work done by force
- 21Principle of conservation of energy 4 (car brakes to a rest)loss in KE = work done by friction
- 22power (non-electrical)P = E / t
P = W / t
P = F v - 23calibration of thermometer
- 24calibration of thermocouple
- 25energy gain/loss by substance when the temperature change by θQ = mcΔθ
(where c is the specific heat capacity of the substance) - 26energy gain/loss when a substance undergoes change of stateQ = ml
(where l is the specific latent heat of fusion or vaporization) - 27Period, T (in waves)T = 1 / f
- 28wave velocity, vv = f λ
- 29speed of sound, v (in a situation where there is an echo)v = 2d / t
- 30refractive index, n (using i and r)
- 31refractive index, n (using speed of light)
- 32refractive index, n (depth of object)
- 33critical angle, c
- 34charge, Q (units?)(coloumbs, C)
- 35Voltage, V (unit?)(volt, V)
- 36resistance, R (unit?)(ohm, Ω)
- 37resistance, R (in terms of dimensions of wire)p is the resistivity of the wire (depends on material)
- 38Effective resistance (series circuit)
- 39Effective resistance (parallel circuit)
- 40Potential divider (series circuit)
- 41Power (electrical power)
- 42Electrical energyE = VIt
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- Beschreibung
- Quick way to test how much formulas you can remember correctly.
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- Teo Chun Min
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