PHY101: Mastering Core Physics Concepts – From
Mechanics to Modern Physics
Physics - derived from the Greek word "phisis" which means nature
mechanics, heat, sound, optics, electricity and magnetism, and atomic and nuclear physics - 6
common divisions of physics
mechanics - concerned with the position (statics) and motion (dynamics) of matter
space
heat - deals with temperature scales and measurements
sound - concerned with vibrations and waves with their recording and transmission and
perception, as in music and speech
optics - concerned with the nature and propagation of light, including the refraction that occurs
when light passes through prisms and lenses
electricity and magnetism - deals with electric charge and current
atomic and nuclear physics - study of radiation, photoelectric effect, x-ray, structure of the
atom, radioactivity, nuclear disintegration, and other properties of nuclei
measurement - expressed in unit values or units
length, mass, time - 3 fundamental quantities of mechanics
length - distance from 2 points
mass - measure of inertia
time - measure of duration
prefixes - greatest advantage of the metric system
scientific notation - shorthand way of writing very small and very large numbers
3.0x10^8 m/s - speed of light
9.11x10^-31 kg - mass of electron
6.02x10^23 molecules/mole - Avogadro's number
, scalar - length, mass, time, volume, density, speed, distance
scalar - specified by magnitude alone
vectors - velocity, forces, acceleration, displacement, and momentum
vectors - quantities that have both a magnitude and a direction
force - a push or a pull;
vector quantity which possesses both magnitude and direction
coplanar forces - any forces acting on the same plane and can be completely specified by 2
coordinates
concurrent forces - forces that intersects at a common point
resultant force - a single force whose effect is the same as that of a given set of concurrent or
coplanar forces
R^2 = F1^2 + F2^2; tan (theta) = F2/F1 - Formula for resistance and angle if 2 forces are
perpendicular
sine, cosine - If 2 forces are not perpendicular, use the law of _____ and _______ in solving the
resultant and angle.
components of a force - effective values of a force other than the force itself
component method - analytical method of finding the magnitude and direction of the
resultant
vector difference - process of subtracting one vector from another by reversing the direction of
one vector
equilibrium - state in which there is no change in the motion of a body
equilibrium - condition that exists when the vector sum of the forces tending to produce
translation or motion in a straight line is zero, and when the algebraic sum of the moments
tending to rotate the body is zero.
Summation of Fx=0
Summation of Fy=0
Summation of Mo=0 - 3 conditions of equilibrium
Mechanics to Modern Physics
Physics - derived from the Greek word "phisis" which means nature
mechanics, heat, sound, optics, electricity and magnetism, and atomic and nuclear physics - 6
common divisions of physics
mechanics - concerned with the position (statics) and motion (dynamics) of matter
space
heat - deals with temperature scales and measurements
sound - concerned with vibrations and waves with their recording and transmission and
perception, as in music and speech
optics - concerned with the nature and propagation of light, including the refraction that occurs
when light passes through prisms and lenses
electricity and magnetism - deals with electric charge and current
atomic and nuclear physics - study of radiation, photoelectric effect, x-ray, structure of the
atom, radioactivity, nuclear disintegration, and other properties of nuclei
measurement - expressed in unit values or units
length, mass, time - 3 fundamental quantities of mechanics
length - distance from 2 points
mass - measure of inertia
time - measure of duration
prefixes - greatest advantage of the metric system
scientific notation - shorthand way of writing very small and very large numbers
3.0x10^8 m/s - speed of light
9.11x10^-31 kg - mass of electron
6.02x10^23 molecules/mole - Avogadro's number
, scalar - length, mass, time, volume, density, speed, distance
scalar - specified by magnitude alone
vectors - velocity, forces, acceleration, displacement, and momentum
vectors - quantities that have both a magnitude and a direction
force - a push or a pull;
vector quantity which possesses both magnitude and direction
coplanar forces - any forces acting on the same plane and can be completely specified by 2
coordinates
concurrent forces - forces that intersects at a common point
resultant force - a single force whose effect is the same as that of a given set of concurrent or
coplanar forces
R^2 = F1^2 + F2^2; tan (theta) = F2/F1 - Formula for resistance and angle if 2 forces are
perpendicular
sine, cosine - If 2 forces are not perpendicular, use the law of _____ and _______ in solving the
resultant and angle.
components of a force - effective values of a force other than the force itself
component method - analytical method of finding the magnitude and direction of the
resultant
vector difference - process of subtracting one vector from another by reversing the direction of
one vector
equilibrium - state in which there is no change in the motion of a body
equilibrium - condition that exists when the vector sum of the forces tending to produce
translation or motion in a straight line is zero, and when the algebraic sum of the moments
tending to rotate the body is zero.
Summation of Fx=0
Summation of Fy=0
Summation of Mo=0 - 3 conditions of equilibrium
