(i) the relationship between average speed, distance and time:

average speed= distance/time

s=d/t

(ii) the relationship between force, mass and acceleration:

force = mass × acceleration

acceleration = change in velocity/time taken

a=v-u/t

(iii) the relationship between density, mass and volume:

density=mass/volume

ρ=m/v

(iv) the relationship between force, distance and work:

work done = force × distance moved in direction of force

E=Fxd

(v) the energy relationships:

energy transferred = work done

kinetic energy = ½ × mass × speeds2

^{}

^{}

Ek= ½ x m x s2

_{}

gravitational potential energy = mass × g × height

(vi) the relationship between mass, weight and gravitational field strength:

weight = mass × gravitational field strength

W=m x g

(vii) the relationship between an applied force, the area over which it acts and the resulting

pressure=force/area

p=F/A

(viii) the relationship between the moment of a force and its distance from the pivot:

moment = force × perpendicular distance from the pivot

moment=F x d

(ix) the relationships between charge, current, voltage, resistance and electrical power:

charge = current × time

Q=Ixt

voltage = current × resistance

V=IxR

electrical power = voltage × current

P=VxI

(x) the relationship between speed, frequency and wavelength:

wave speed = frequency × wavelength

V(velocity)=f x λ

(xi) input (primary voltage)/output (secondary voltage)=primary turns/secondary turns

(xii) the relationship between refractive index, angle of incidence and angle of refraction:

n=sin i/sin r

(xiii) the relationship between refractive index and critical angle:

sin c = 1/n

(xiv) the relationship for pressure difference:

pressure difference = height × density × g

p = h x ρ x g

Thank you so much Michelle! You have no idea how many times I've recommended your blog to my friends! :-)

ReplyDeleteYou're very welcome ~ I'm so happy it's worthy of recommendation, good luck with your studies!! :) :)

Deletei will nominate you for the nobel peace prize

ReplyDelete