Benjamin Thomas
MUSI 1306.WX1
April 19, 2017
Audio Recording Critique: Ed Sheeran, Shape of You, from the album Divide
Edward Christopher Sheeran, or Ed Sheeran, is an English singer and songwriter. H
Celsius Scale
0 C (freezing point)
100 C (boiling point)
Distance between these points is divided into 100
segments
Kelvin Scale
When the pressure of a gas goes to zero, its
temperature is 273.15 C
Example Problem
A place kicker must kick a football from a point
36.0 m (about 39 yd) from the goal, and the ball
must clear the crossbar, which is 3.05 m high.
When kicked, the ball leaves the ground
Periodic Motion
Motion that repeats itself at
regular time intervals
Simple Harmonic Motion
Specific type of periodic
motion
Motion is sinusoidal
Movement traces out a sine
(or cosine) curve
All SHM
When an object is in motion on a rough
surface or through a viscous medium, there
will be a resistance to the motion
This is resistance is called the force of
friction
Frictional force is proportio
Smooth rolling
motion (without
slipping)
1
An object rotating about some axis with an
angular speed, , has rotational kinetic
energy
Work done by a torque
2
1
Example Problem
A solid sphere of mass m
1
An object either at rest or moving with a
constant velocity is said to be in equilibrium
The net force acting on the object is zero
What is the tension in each
section of the cable?
2
1
Applying Ne
1
2
1
Example Problem
(a) Find the average
accelerations of this object
during the time intervals
0 to 5.0 s, 5.0 s to 15 s, and
0 to 20 s.
(b) Find the instantaneous
accelerations at 2.0 s, 10 s,
and
The density of a substance of uniform composition is
defined as its mass per unit volume:
Pressure is the force per unit
area exerted by a fluid on a
submerged object at any
point perpendicular to th
Gravitational Potential
Energy is the energy
associated with the relative
position of an object in
space near the Earths
surface
PE = mgy
Units of Potential Energy are
the same as those of Work
and
Axis of rotation is the
center of the rotating
disk
During time t, the
reference line moves
through angle
(measured in radians),
called the angular
displacement
1
The average angular
velocity, , of
Result of a dot product is a scalar
1
The work, W, done by a constant force on an
object is defined as:
SI
units
Newton
US
meter = Joule
Nm=J
Customary units
foot
pound [ft lb]
2
1
Scalar quantity
T
University Physics I
Chapters 1 and 2
Measurement and Vectors
1
Basic Quantities Length, Mass, Time
SI (Systme International) or mks (meter, kilogram,
second)
Gaussian system or cgs (centimeter, gram,
Newtons Law of Universal Gravitation:
Every particle in the Universe attracts every
other particle with a force that is directly
proportional to the product of the masses
and inversely proportional t
The linear momentum of an object of mass m
moving with a velocity v is defined as the product
of the mass and the velocity
p = m v
SI Units are kg m / s
Vector quantity, the direction of the momentu