phyics
average speed formula
distance
--------------
time
average velocity
total displacemenet
----------------------
total time
average speed
initial speed + final speed
-------------------------------
2
average velocity
initial velocity + final velocity
---------------------------------
2
rate of change of speed formula
final speeed - initial speed
------------------------------
time
acceleration formula
final velocity - initial velocity
-------------------------------
time
force formula
mass x acceleration (=ma)
weight formula
mass x gravity
hookes law formula
spring constant x exetension (f=ke)
pressure formula
force
--------
area
moment formula
force x distance
principle of moments formula
ACM = CM ----> f x d = f x d
density formula
mass
------
volume
work formula
force x distance (w=fd)
energy transferred formula
force x distance
power formula
work done
-------------
time
efficiency formula
useful energy out
----------------------
useful energy in
potential energy formula
mass x gravity x heigh (mgh)
kinetic energy formula
1/2 x mass x velocity squared (1/2mv2)