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AP Physics 1 Study Notes
- Course
- Physics
- Institution
- 11th Grade
These easy-to-follow notes cover all the material in AP Physics 1. Have fun!
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Work 02/16/23Work is the mechanical transfer of
energy
ability
↳ is the to do work
energy
AE
↳ W= -> Jovies/Jovies?
force xdistance
Work= I
Wf d
=
↳ W
x
F,d
=
FcosO.d
=
- -?? -- Fi
(N.m) 1 -d -
1
Work -
scalar
Units:Joules, J (kgm2/s) Athough work is a scalar we can still do
(A) and <-> Work
I F
s
-
a
↑
0
=
F d d
↑ I I
-
Work done lowering ball
work done
lifting ball
If work was done 1-3 Work was done
-- - 1 - & I
CASW Or ->W d
Or d
a- - d ->
, Example
Push a box to R w/ a force of 5N a distance 2m.
of If is 2.50. How
much work?
FN 3N W Fxd
= =
↑
5x2
=
Ff 2.5N =
F 5N
=
105
=
-
Fg 3N =
m
Power
-
another conceptrequiring a strict
physics definition
rate of
doing work
-
formula:p W/t f.d(t F.v
= =
-
=
-
Units:Joules/second Watts, W
=
↳ alternate unit (NOT S1):horsepower
↳
In.p. =
746 Watts
p
z EpE - P. t E
=
=
= =
Electrical
Energy is sold in units of kWh (kilowatt-hours)
kW.h 10005/s.
=
3600s 3,600,000 T
=
Rate: $12/kW.h Example Determine costof
making a
potof coffee
in a 900W coffee maker for 10.0min
Cost usex rate
=
(kWh) ($/kw.n) cost =
useXrate
(0.900kW-687) $0.12)wh
=
x
$0.02
=
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