COMBINATION OF
RESISTORS IN SERIES
AND
RESISITORS IN PARALLEL
1. Find the equivalent resistance between point
a and c.
6.0
8.0
a
4.0
c
b
3.0
8.0
2.0
a
b
c
14.0
a
c
2.
3.
Electric Potential and Capacitan
Electrostatics
Electrical energy
potential difference and
electric potential
potential energy of charged
conductors
Capacitance and capacitors
07/01/17
1
Lightning Review
1. Potential and potential energy
Q
electrost
Electric Field
Physics
Mrs. Coyle
Analogy
The electric field is the space
around an electrical charge
just like
a gravitational field is the space
around a mass.
Electric Field
Space around a charge.
What is the difference?
Van de Graaff Generator
Build
Electric Potential and Capacitan
Electrostatics
Electrical energy
potential difference and
electric potential
potential energy of charged
conductors
Capacitance and capacitors
07/01/17
1
1. Potential and potential energy
Q
electrostatic force is con
Lecture #1
DENSITY
- is a scalar quantity and defined as the ratio of mass
per unit volume.
- it is also known as mass density.
- in equation,
where is the density
is the mass
is the volume
- the SI unit if density is
- as weight density, it is expressed
Wave
Reporters:
Ray Lewis Bautista
Christian Lawrence Fedilo
Carmela Tuason
Matthew Jonathan Vallente
WAVE
a disturbance or variation that transfers
energy progressively from point to point in a
medium and that may take the form of an
elastic deformation
ANGULAR FREQUENCY
angular frequency is a scalar measure of
rotation rate. It refers to the angular displacement
per unit time (e.g., in rotation) or the rate of change
of the phase of a sinusoidal waveform
FORMULA:
Where:
is the angular frequency or angu
EQUIVALENT
RESISTANCE
RESISTORS IN SERIES
Resistors in series
Series- when 2 or more resistors are
connected end-to-end
Series combination of resistors
The Current are the same in all the resistors
because the amount of charge passed
through one resistor
Doppler
Effect
What is the DOPPLER EFFECT?
The Doppler effect is . . .
the apparent change in the frequency
of a wave motion
when there is relative motion
between the source and the observer.
Moving Source
2
1
vS
Stationary Source
Moving Source
Stationary
Chapter 2
Thermodynamic Concepts and
Processes
c
2011
by Harvey Gould and Jan Tobochnik
26 July 2016
We introduce the concepts of temperature, energy, work, heating, entropy, engines, and the laws
of thermodynamics and related macroscopic concepts.
2.1
In
National Institute of Physics, University of the Philippines - Diliman
2nd Sem AY 2015-2016 7 Plea}: Chi/ed lamafm‘ré
Physics 71 7‘qu W ”(Jr
Recitation 12 X F; 5 5‘, [’qu 5'19
ha [445 5a 60hr», W [“Jr
Name: 7‘
Student number: ’ 9'".
Recit Section and Re
Lecture 10: Newtons 2nd and 3rd law
1
A body in equilibrium that remains in equilibrium!
Newtons 1st Law of Motion: body in equilibrium
When a body is in equilibrium:
the body is at rest OR moving at constant velocity
state of motion means (how it moves o
Lecture 4: Acceleration
Acceleration is the rate of change of
velocity with time.
Acceleration is how the
Velocity is how fast and in
speed and direction of the what direction an object
objects motion are
moves.
changing
3
Velocity/Speed:
corresponds to a
Lecture 2: Vectors
Vectors and Scalars
Scalars
Quantities that can be fully described by a single
number, not needing direction
ex. mass (60 kg), time (2 s)
Vectors
quantities that need magnitude and direction to
be meaningful
ex. velocity, accelera
Lecture 9: Newtons Law: Forces
and Law of Inertia
1
Review Seatwork:
Enumerate the 4 kinematic equations for
constant acceleration
What is the formula relating the radial
acceleration and the magnitude of the velocity
and the radius of curvature for uni
Lecture 15 Circular Motion
Review Seatwork
A 5-kg block is held at rest against a vertical wall by a
horizontal force of 100 N.
(a)Draw a free body diagram of the object
(b)What is the frictional force exerted by the wall on
the block?
(c)What is the mini
Lecture 8: Circular Motion
and Relative velocity
1
Parallel and perpendicular
components of acceleration
Parallel
Acceleration
Velocity
Perpendicula
r
Parallel
Parallel to , path
Same direction
Change in particles
speed (magnitude)
No change in direction
Lecture 28: Vector product and
Torque
Moment Of Inertia
Parallel Axis Thm
ROTATIONAL
KINEMATICS
Torque
Rotational Energy
K = I2
Angular Momentum
5
Mathematics for Torque: Vector Cross Product
x-component
y-component
For vectors A and B without z-component
Lecture 19: Elastic Potential Energy and
Conservation of Mechanical Energy
Work done on spring
Greater displacement, greater
restoring force
Work = Area final Area initial
1 2 1 2
W kx2 kx1
2
2
Work done ON the spring or BY the spring?
ON THE SPRING
BY TH
Lecture 12: Dynamics of
Particles
1
Recall:
Systems at equilibrium include
Bodies at rest
Bodies moving at constant velocity
,
Newtons Second Law: Dynamics of
Particles
,
3
Problem solving tips
Always start with the free-body diagram.
Identify the axis an
Lecture 3 : Distance,
Displacement, Speed and Velocity
2 ways of writing the vectors
Using the general formula
Always set at + x-axis
Unit vectors and are
always positive
Using
direction to guide
calculation
magnitude of force
components are always
p
Lecture 16: Work and Kinetic
Energy
1
FORCES
W = mg
T
N
f=N
f = kv
f = Dv2
Work
W = F d cos
KINEMATICS
Newtons Law
F = ma
Now
Showing
ENERGY
Kinetic Energy
K.E. = (1/2) mv2
2
Kinetic energy is related to the motion of an object.
If an object is moving, t
Lecture 11: Applying
Newtons Law
1
Solving Problems using equations of
motion
- Many problems can be solved by using
Newtons 3 laws of motion
in equilibrium
,
accelerating
action & reaction
- Correct free-body diagram will be very
helpful!
4
Problem solv
Lecture 6: Motion in 2D
and 3D
1
Kinematic equations for
constant acceleration
Useful if position is not
given
Useful if final velocity
is not given
Useful if time is not
given
Useful if acceleration is
2
not given
Acceleration due to gravity,
Constant ac
Lecture 5: Motion with constant
acceleration
Kinematic equations for constant
acceleration
Useful if position is not given
Useful if final velocity is not
given
Useful if time is not given
Useful if acceleration is not
given
2
Guides in problem solving
De
Lecture 15 Work
1
Correction
My name is Mr. Lean L. Dasallas
Not
Not
Not
Not
Not
Not
Mr. Dean Lasallas
Mr. Lean Desalles
Mr. Lean Dasalias
Mr. Lean Dasailas
Mr. John Lloyd Cruz
Leonardo DiCaprio
2
FORCES
W = mg
T
N
f=N
f = kv
f = Dv2
Work
W = F d c
Lecture 18: Potential Energy and
Law of Conservation of Energy
1
Potential energy is stored energy.
Potential energy is associated with position.
Potential energy is the measure of the possibility for
work to be done (i.e. change in the state of motion
of