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formulas

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

velocity

Back (Answer)

displacement/time taken

#2
Front (Question)

acceleration

Back (Answer)

change in velocity/time taken

#3
Front (Question)

uniform acceleration

Back (Answer)

v-u/t in secs

#4
Front (Question)

displacement

Back (Answer)

1/2 (u+v) t

#5
Front (Question)

average velocity

Back (Answer)

1/2 (u+v)

#6
Front (Question)

pressure (N/m^2 or Pa)

Back (Answer)

force (Fn)/ area (Am^2)

#7
Front (Question)

mass (kg)

Back (Answer)

density x volume

#8
Front (Question)

weight (N)

Back (Answer)

mass (kg x m/s^2 or kg x N/kg) x gravity

#9
Front (Question)

pressure in liquid (Pa or N/m^2)

Back (Answer)

hpg (depth beneath surface x pressure in kg/m^3 x gravitational field strength (10 on earth) )

#10
Front (Question)

F1/A1 = F2/A2

Back (Answer)

F1 x D1 = F2 x D2

#11
Front (Question)

density (kg/m^3)

Back (Answer)

mass (kg)/ volume(m^3)

#12
Front (Question)

moment

Back (Answer)

Fd (Force in N x Perpendicular distance in m)

#13
Front (Question)

efficiency

Back (Answer)

useful energy output/ total energy input x 100%

#14
Front (Question)

work done (J)

Back (Answer)

Fs (constant force in N x distance moved in direction of force in m)

#15
Front (Question)

kinetic energy (J)

Back (Answer)

1/2 mv^2 (mass in kg x speed in m/s)

#16
Front (Question)

gravitational potential energy (J)

Back (Answer)

mgh (mass in kg x gravitation field strength in N/kg or m/s^2 x height in m)

#17
Front (Question)

sini/sinr

Back (Answer)

constant

#18
Front (Question)

n (refractive index)

Back (Answer)

c/v (speed of light in vacuum/ speed in light in medium)

#19
Front (Question)

n (refractive index)

Back (Answer)

sini/sinr (angle of incidence in vacuum/angle of incidence in medium)

#20
Front (Question)

sinc (critical angle of medium)

Back (Answer)

1/n (1/refractive index of medium)

#21
Front (Question)

f (frequency in Hz)

Back (Answer)

1/T (1/period in s)

#22
Front (Question)

v (speed of wave in m/s)

Back (Answer)

wavelength (m)/ period (s) frequency (Hz) x wavelength (m)

#23
Front (Question)

period

Back (Answer)

time taken/ no. of waves

#24
Front (Question)

I (current in A)

Back (Answer)

Q (charge in c)/ T (time in s)