newtons laws of motion Flashcards
newtons first law
the law of inertia
the law of inertia
a body will remain at rest or in uniform motion in a straight line unless acted upon by an external force
inertia
the resistance of a body to a change in its state of motion
mass
the quantity of matter found within a particular body
newtons second law
the law of acceleration
law of acceleration
a force applied to an object will produce a change in motion (acceleration) in the direction of the applied force that is directly proportional to the size of the force
law of acceleration formula
force = mass x acceleration
acceleration
how quickly an objects velocity/speed changes
how fast you can speed up or slow down
can be positive (increased speed), negative (decreased speed) or zero (constant speed
newtons third law
the law of action/reaction
the law of action/reaction
for every action there is an equal and opposite reaction. this law explains that when two objects collide they exert forces on each other that are equal in size but opposite in direction