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AP PHYSICS WORK & ENERGY

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Section 1

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work energy theorem

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Mar 1, 2020

Cards (24)

Section 1

(24 cards)

work energy theorem

Front

the change in a kinetic energy (or potential energy) of an object is exactly equal to the net work done on it

Back

when f is parallel to the displacement and in opposite directions

Front

w=-fd since theta=180 and cos180=-1

Back

kinetic energy

Front

energy an object has due to it's motion

Back

when f is perpendicular to the displacement

Front

no work is done w=fd d=0 w=0

Back

work is positive if force and displacement are

Front

in the same direction

Back

definition of gravitational potential energy

Front

energy associated with an object due to the objects position relative to a gravitational source near the surface of the earth

Back

what is needed for mass to gain kinetic energy

Front

positive work must be done

Back

what is needed for mass to lose kinetic energy

Front

negative work must be done

Back

when is a force conservative?

Front

when it is done independent of the path between the objects initial and final posistion

Back

potential energy

Front

energy a system has because of it's position

Back

mechanical energy

Front

sum of kinetic and potential energy at any given moment

Back

equation for power

Front

P=work/ time P = Fv

Back

mechanical energy equation

Front

TME=K+U(g)+U(s)

Back

what type of product is work

Front

scalar

Back

work is negative if force and displacement are in

Front

opposite directions

Back

work

Front

energy transferred by a force through a distance

Back

energy

Front

the ability to do work

Back

work is zero if force and displacement are

Front

perpendicular

Back

power

Front

the rate at which work is done

Back

gravitational potential energy equation

Front

U=mg delta y

Back

non conservative force

Front

depend on the path taken if d increases, so does work

Back

how can work be found in a force vs displacement graph

Front

area under the curve

Back

what does kinetic energy depend upon

Front

speed and mass

Back

when f is parallel to the displacement and in the same directions

Front

w=fd since theta=0 and cos0=1

Back