physics Flashcards
speed formula
S=D/T
velocity formula
V=D/T
acceleration formula
Delta V/Delta T
SI units for velocity
m/s
SI units for acceleration
m/s2
Newton’s 1st law
the law of inertia: an object in motion tends to stay in motion, and an object at rest tends to stay at rest
Newton’s 2nd law
the force/mass/acceleration relationship: the acceleration of an object is directly related to the force applied to an object and inversely related to the mass of the object
Newton’s 3rd law
for every action (or force), there is an equal and opposite reaction (or reactive force)
kinetic energy formula
Ke=1/2mv2
work
force x distance
power
work/time
elastic potential formula
W=Fs
0th law of thermodynamics
if two systems are in equilibrium with a third system, then the first two are in equilibrium with each other.
1st law of thermodynamics
energy, including heat energy, cannot be created or destroyed
2nd law of thermodynamics
the entropy or disorder of a system will always increase, not decrease
