What is the equation that links distance travelled, average speed and time?

distance travelled = average speed × time

d = s x t

What is the equation that links acceleration, change in velocity and time taken?

acceleration = change in velocity ÷ time taken

__a = (v – u)__

t

What is the equation that links force, mass and acceleration?

force = mass × acceleration

F = m × a

What is the equation that links weight, mass and gravitational field strengh?

weight = mass × gravitational field strength

W = m × g

What is the equation that links momentum, mass and velocity? (Higher)

momentum = mass × velocity

p = m × v

What is the equation that links work done, force and distance moved in the direction of the force?

work done = force × distance moved in the direction of the force

E = F x d

What is the equation that connects kinetic energy, mass and velocity?

kinetic energy = ½ × mass × (velocity)^{2}

KE = ½ × m × v^{2}

What is the equation for efficiency?

__(useful energy transferred by the device)__

(total energy supplied to the device)

What is the equation that links gravitational potential energy, mass, gravitational field strength and change in vertical height?

gravitational potential energy = mass × gravitational field strength x change in vertical height

ΔGPE = m × g × Δh

What is the equation that links wave velocity, frequency and wavelength?

wave velocity = frequency x wavelength

v = f x λ

What is the equation that connects wave speed, distance and time?

wave speed = __distance__

time

v = __d__

t

What is the equation that connects power, work done and time taken?

power = work done ÷ time taken

P = __E__

t

What is the equation for moment of a force?

moment of a force = force × distance normal to the direction of the force

What is the equation that connects charge, current and time?

charge = current × time

Q = I x t

What is the equation that connects energy transferred, charge moved and potential difference?

energy transferred = charge moved × potential difference

E = Q × V

What is the equation that connects potential difference, current and resistance?

potential difference = current × resistance

V = I x R

What is the equation that connects electrical power, current and potential difference?

electrical power = current × potential difference

P = I x V

What is the equation that connects electrical power, current and resistance?

electrical power = current squared × resistance

P = I^{2} x R

What is the equation that links density, mass and volume?

density = mass ÷ volume

ρ = __m__

V

What is the equation that links force exerted on a spring, spring constant and extension?

force exerted on a spring = spring constant × extension

F = k × x

What is the equation that links pressure, force normal to a surface and area of surface?

pressure = force normal to surface ÷ area of surface

P = __F__

A

What is the equation that links final velocity, initial velocity, acceleration and distance?

(final velocity)^{2} – (initial velocity)^{2} = 2 × acceleration × distance

v^{2} – u^{2} = 2 × a × x

What is the equation that links force, change in momentum and time? (Higher)

force = change in momentum ÷ time

F = __(mv – mu)__

t

What is the equation that links energy transferred, current, potential difference and time?

energy transferred = current × potential difference × time

E = I x V x t

What is the equation that connects force on conductor at right angle to a magnetic field carrying a current, magnetic flux density, current and length? (Higher)

force on conductor at right angle to a magnetic field carrying a current = magnetic flux density × current × length

F = B × I × L

__Voltage across primary coil__ = ?

Voltage across secondary coil

__voltage across primary coil__ = __number of turns in primary coil__

voltage across secondary coil number of turns in secondary

__V _{p}__ =

__N__

_{p}V_{s} N_{s}

(pd × current) in primary coil = ?

(pd × current) in primary coil = (pd × current) in secondary coil

V_{p} × I_{p} = Vs × I_{s}

What is the equation that connects change in thermal energy, mass, specific heat capacty and change in temperature?

change in thermal energy = mass × specific heat capacity × change in temperature

ΔQ = m × c × Δθ

What is the equation that links thermal energy for a change of state, mass and specific latent heat?

thermal energy for a change of state = mass × specific latent heat

Q = m × L

How do you calculate pressure or volume for gases of fixed mass at a constant temperature?

P_{1} x V_{1} = P_{2} x V_{2}