Cambridge o’level physics (5054)
FORMULAE SHEET
Note: Cambridge O’level 5054 syllabus is divided into 6 sections. Formulae’s or equations are written under each topic with
specified sub topic.
SECTION I: GENERAL PHYSICS
Vernier Caliper ,
Final Reading = Main scale reading +( Vernier scale reading X least count)
F.R = MSR + (VSR X LC)
Least counts are 0.01 for cm and 0.1 for mm
Micrometer screw gauge,
Final Reading = Main scale reading +( thimble scale reading X least count)
F.R = MSR + (TSR X LC)
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SECTION II: NEWTONIAN MECHANICS
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Dynamics:
Force= mass X acceleration, F=ma
Stopping distance = Thinking distance + braking distance,
Mass, Weight and Density:
Weight = mass X gravitational field strength, W=mg
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SD = TD + BD
Turning effect of force:
Moment = Force X perpendicular distance, m=F X d
Pressure:
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Pressure= density X gravitational field strength x height,
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p = ρgh.
Pressure and volume, Pressure 1 X volume 1 = Pressure 2 X volume 2,
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p1V1 = p2V2.
SECTION III: ENERGY AND THERMAL PHYSICS
Energy Sources and Transfer of Energy
Kinetic energy =½ mass X square of velocity, Ek = ½mv 2
Potential energy= mass X gravitational field strength X height, EP = mgh
Mass-energy equation, Energy = mass X square of light speed
E = mc 2.
Work = force × distance moved in the line of action of the force, W = F X d
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Thermal Properties of Matter
Thermal energy = mass × specific heat capacity × change in temperature. E=mc(Q2-Q1)
Thermal energy = mass × specific latent heat.
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E = mL
SECTION IV: WAVES
General Wave Properties
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Velocity = frequency × wavelength. V=> λ
Light
HIJ HIJ E>FG HIJ 0 HIJ 0
Sound (echo)
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SECTION V: ELECTRICITY AND MAGNETISM
Static Electricity
charge = current × time Q=It
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Potential difference (Voltage) = Current X Rresistance
Series Circuit,
Resistors, R=R1 + R2 + R3. .
Voltage across resistors, V= V1+V2+V3. .
Current in Circuit, I = I1=I2=I3
Parallel circuit,
Resistors in parallel,
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Voltage across resistors V1=V2=V3..
Current in circuit. I=I1+I2+I3
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V=IR
Practical Electricity
power = voltage × current
P= VI
energy = voltage × current × time. E=VIt
SECTION VI: ATOMIC PHYSICS
Radioactivity:
Alpha decay:
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Beta decay:
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Gamma decay:
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