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WPE - Coggle Diagram
WPE
Work done
By a force
By variable force
By different forces
gravity
pair of interacting forces
friction
static
kinetic
object is sliding over fixed surface
object is sliding over moving surface
spring force'
pseudo force
W = Sigma. F * s
Nature of work done
Negative work
Positive work
0
F = 0 OR s= 0 OR F perpendicular to s
Graph
Energy
Work Energy theorem
types of energy
KE
always positive
PE
Intro
Eqn
Change in PE
Rel with F (cons)
WPET
Types
GPE
EPE
Potential Energy curve
U vs x
Nature
Analysisng equilibrium
Types
Stable
Unstable
Neutral
Intro
One force acting on particle
Many forces acting on particle
Types of forces
Conservative
Independent of path
moving through any closed path is 0
Non conservative
depends on path followed
moving through any closed path =/= 0
Energy conservation
properties
Energy of isolated sys remains constant
Works for all forces (conservative & non-conservative).
Energy can transform between different types (mechanical → heat, chemical → electrical, etc.).
COME
Properties
The total mechanical energy (KE + PE) of a system remains constant if only conservative forces act.
KE+PE=constant when only conservative forces act.
Power
Applications
Power of water drawing pump
Intro
Mechanical power
Intro
Work depends on frame of reference