Equations complete Flashcards
What is the equation that links weight, mass and gravity?
weight = mass × gravitational field strength (g)
W=M x G
What equation links work done, force and distance.
work done = force × distance
along the line of action of the force
W=Fs
What equation links force spring constant and extension
force applied to a spring = spring constant × extension
F=Ke
What equation links distance, speed and time?
distance travelled = speed × time
S= D x T
What equation links acceleration velocity and time.
acceleration =
change in velocity
time taken
A=§V/T
What links resultant force with mass and acceleration
resultant force = mass × acceleration
F=MxA
What equation links momentum, mass and velocity.
momentum = mass × velocity P= MxV
What links kinetic energy, 0.5 mass and speed.
kinetic energy = 0.5 × mass × speed
2
What links gravity mass and height?
gravitational potential energy = mass
× gravitational field strength g × height
What links power and energy transfered.
power =
energy transferred
time
What links power, work done and time
power =
work done
time
What is equation to find efficiency.
efficiency =
useful output energy transfer
total input energy transfer
What is the efficiency equation
efficiency =
useful power output
total power input
What is wavespeed equation?
wave speed = frequency × wavelength
What is charge flow equation?
charge flow = current × time
