Domain 1
. Force and Motion.
Types of Forces
uniform motion Fgrmg-gravity
Fr HFn
=
- friction
S= vt
Fo -Ux
spring
-
=
uniformly accelerated motion (1D) Fr = EF- net
↳ Normal
v= vo + at
↳ Tension
s = vot +
tath
v2 = v + 2as
S
=
Newton's Laws
1
. An object remains in uniform motion unless
acted on
by an external force
. F
2 = ma
.
3 Faos = -
Forma
, Domain .
2
Energy and Work
types of
energy
Conservation of
Energy
-
Kinetic Er =
Emul
Whet Er closed En E2
system
=
=
Gravitational Potential Ep =
migh
En + Ep + Es Constant
Elastic Potential Es =x2
=
W =
Es cos O
Work
Power p =
E =
Fu
Non conservative
Efficiency 7 :
Each impur Efficiency work
l thagyoutput,
= Wfriction =
-Fys
Power and Machines ↳ Reduces mechanical
energy
Emech2 =
Emech1-IWhidial
Instantaneous Power : P =
Fr
Wit : Watt (W) =
Jove/se
7 horsepower = 746 W
. Force and Motion.
Types of Forces
uniform motion Fgrmg-gravity
Fr HFn
=
- friction
S= vt
Fo -Ux
spring
-
=
uniformly accelerated motion (1D) Fr = EF- net
↳ Normal
v= vo + at
↳ Tension
s = vot +
tath
v2 = v + 2as
S
=
Newton's Laws
1
. An object remains in uniform motion unless
acted on
by an external force
. F
2 = ma
.
3 Faos = -
Forma
, Domain .
2
Energy and Work
types of
energy
Conservation of
Energy
-
Kinetic Er =
Emul
Whet Er closed En E2
system
=
=
Gravitational Potential Ep =
migh
En + Ep + Es Constant
Elastic Potential Es =x2
=
W =
Es cos O
Work
Power p =
E =
Fu
Non conservative
Efficiency 7 :
Each impur Efficiency work
l thagyoutput,
= Wfriction =
-Fys
Power and Machines ↳ Reduces mechanical
energy
Emech2 =
Emech1-IWhidial
Instantaneous Power : P =
Fr
Wit : Watt (W) =
Jove/se
7 horsepower = 746 W
