Transcript Newton`s 2nd Law - fhssciencerocks

Newton’s
By Brent Caldwell
nd
2
Law
 Newton’s second law explains how
an object will change its velocity if it
is pushed or pulled on
 Force = Mass x Acceleration
 The SI unit for force is the Newton
 One Newton is equal to 0.225 lbs.
 One pound is equal to 4.448 Newtons
 If you push an empty cart with the same
force you would use to push a full cart,
the empty one will have a much greater
acceleration
 If you push an empty cart with the same
force you would use to push a full cart,
the empty one will have a much greater
acceleration
 If masses are the same, the greater force
produces a high acceleration
 The acceleration of an object is
proportional to the net force on the object
and inversely proportional to the object’s
mass
 An unbalanced force acting on an
object causes it to accelerate
 The acceleration of an object is directly
proportional to the net force and inversely
proportional to it’s mass
 Acceleration is inversely related to
the mass of the object
 Ex. - Large Mass = Small Acceleration
 Ex. - Small Mass = Large Acceleration
Source Page
 Info from slides 5 and 6 http://www.wisconline.com/objects/ViewObject.aspx?ID=
TP1302
 Picture http://www.celsum.com/Graphics/newton
_cradle.gif