equations Flashcards
What equation links weight mass and gravitational field strength?
weight = mass x gravitational field strength
What equation links work done force and distance?
work done = force x distance
What equation links force applied to a spring spring constant and extension?
force applied to a spring = spring constant x extension
What equation links moment force and distance?
moment = force x distance
What equation links force pressure and area?
pressure = force / area
What equation links speed distance and time?
speed = distance / time
What equation links acceleration change in velocity and time taken?
acceleration = change in veolicty x time taken
What equation links momentum mass and velocity?
momentum = mass x velocity
Whats the kinetic energy equation?
kinetic energy = 0.5 x mass x speed^2
Whats the grav potential energy equation?
grav potential energy = mass x grav field strength x height
What equation links power energy transferred and time?
power = energy transferred / time
How do you work out efficiency?
efficiency = useful / total
What equation links charge flow current and time?
charge flow = current x time
What equation links voltage current and resistance?
voltage = current x resistance
What equation links power voltage and current?
power = voltage x current