Studied by 42 peopleforce
a push or a pull exerted by some agent on some object
vectors
directions ( can combine to make larger or smaller overall effects)
4 natural forces
gravity, weak nuclear force, electromagnetic force, strong nuclear force
Normal force
supports the weight of am object
tension
points along rope to center as a result of being stretches
friction
force that opposes motion
Net force
sum of all forces acting upon an object
Newtons first law
an object in motion stays in motion, an object at rest stays at rest, unless acted upon by an outside non-zero force
inertia
the tendency of an object to resist a change in motion unless an outside force acts on the object
an object accelerating means
Fnet≠0→forces not balanced
constant velocity or @ rest
Fnet=0→forces are balanced→equilibrium
free body diagrams
drawing forces on a picture
How does mass influence acceleration?
acceleration inversely is proportional to mass
increases mass→
acceleration decreases
decreases mass→
acceleration increases
More mass→less acceleration→
harder to move
less mass→more acceleration→
easier to move
How is mass related to inertia?
mass is a measure of inertia
Newtons third law
for every action, there is an equal to opposite reaction
Note
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