Equations Flashcards
Acceleration
Acceleration = change in velocity/ time taken A= ∆v/t
Velocity
Velocity = displacement/time
V=s/t
Force
Force = mass x acceleration
F=ma
Weight
Weight =mass x gravitational field strength
W=mg
Momentum
Momentum = mass x velocity
P=mv
Speed
Speed = distance/time
S=s/t
Suvat (1)
Final velocity= initial velocity + acceleration x time
V = u+at
Impact force
Force= change in momentum /time taken F= ∆p/t
Suvat (2)
Final speed ²= initial speed ² + 2(acceleration x distance)
V ²=u ²+2as
Gradient
Rise/run
What is terminal velocity?
the object moves at a steady speed in a constant direction because the resultant force acting on it is zero
What is a vector quantity?
A vector quantity is a quantity that has both direction and magnitude
What is a scalar quantity?
A quantity that had magnitude but no given direction
Impact force
Force=change in momentum/time
F= ∆p/t
Hooke’s Law equation
Spring force= spring constant x spring stretch
F=k ∆x
