college physics chapter 5 terms
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22 Terms
work
indicates the amount of energy transferred during activity, vector quantity
+, work
work and displacement go in the same direction
-, work
work and displacement go in different direction
work units
j, nm (newtonmeter), kgm2/s2
work-ke thereom
the net work done by all the forces acting on all objects is equal to its change in the objects kinetic energy
energy
the ability to produce a change
kinetic energy
the energy of an object due to motion
potential energy
energy stored in an object due to position
gpe
energy stored in, depends on height from level zero
chemical energy
energy due to the chemical of the material
epe
energy available for use when a object returns to its original configuration
mechanical energy
the sum of the ke and me potential forms of energy
law of conservation of energy
the total energy of a system is always conserved—-INCLUDES FRICTION
force pulled against
friction
force lifted against
weight
aw>tw, true or false
true
tw has
no friction
way aw and tw can be the same
no gravity
ke after mass hit the floor
sound, heat, vibrations transfer
mass
kg
time
seconds
height
m
