1 D Kinematics
what is average velocity
Average velocity is a vector quantity. Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.
what is ADDITION
ADDITION: When two (2) vectors point in
the SAME direction, simply add them
Isaac Newton is
Came up with 3 Laws of Motion to explain the
observations and analyses of Galileo and Johannes
Kepler.
MECHANICAL ENERGY is
When work is done, that object
acquires mechanical energy, either
through height or motion.
Revolution _____ around the circle
once
what is Instantaneous Velocity
Instantaneous velocity is the speed of an object at a single instant in time.
what is SUBTRACTION
SUBTRACTION: When
two (2) vectors point in
the OPPOSITE
direction,
simply subtract them.
What is Force?
A force is a push or pull on an object.
GRAVITATIONAL POTENTIAL
ENERGY is
Stored energy due to height
Distance of 1 revolution is
circle’s circumference; d= 2πr
what is vector
Vector – magnitude AND direction
what is it Graphical Method
Aligning vectors head to tail
and then drawing the
resultant from the tail
of the first to the
head of the last.
what is Free Body Diagrams
A diagram that shows all of the
forces acting on an object
KINETIC ENERGY is
energy of motion
Time of one revolution called
period (T)
what is scalar
Scalar – magnitude only
what are NON CO-LINEAR VECTORS
When two (2) vectors are
Applied force is?
Force applied to an object by a person
or another object
the EQUATIONS for KINETIC ENERGY
KE = 1/2MV2
ac _________ is always perpendicular to the _______velocity.
acceleration & tangential
Motion must be
measured ______ to something usually the Earth
relative
PERPENDICULAR is
to each
other, you must use the
PYTHAGOREAN THEOREM
Weight is
Force due to gravity
the EQUATIONS for POTENTIAL ENERGY
PE = M X G X H
r stands for _____
radius