base physical quantities
fundamental measurements that have no substitute
non-contested data (the average of thousands of trials)
the difference between the accepted value and a measured value
the absolute error divided by the accepted value
how is absolute error found?
(|AV-YV|) / AV
how is relative error found?
values we allow to be altered during experimentation
varibles whose values are intentionally kept the same during experimentation
variables that we assume remain unchanged during experimentation or have no bearing on the experiment if changed
a value we believe to never change
the dependent value is graphed on the...
the independent variable is graphed on the...
vairable whose values are chosen BEFORE experimentation
variable whose values are unknown until trials take place
how is AVERAGE VELOCITY found?
x = (v,avg)t + x,o
how is POSITION found?
find the slope of a line tangent to the curve
how is INSTANTANEOUS VELOCITY found?
how is AVERAGE ACCELERATION found?
v = v,o + a,o(t)
finish the equation ... v =
x = x,o + v,o(t) + a,o(t)^2
finish the equation ... x =
velocity is increasing
acceleration arrows are parallel with the velocity arrows when...
velocity is decreasing
acceleration arrows are anti-parallel with velocity arrows when...
numbers + units
all values have...
quantity that requires direction as a value...
acceleration, displacement, position, velocity
what are four examples of vectors?
quantity that does not account direction as part of the value...
clock reading, speed
what are two examples of scalars?
what is the value of gravitational acceleration?
factor with a constant value that determines the relationship between two measurements of the same type
factor with a constant value that determines the relationship between two measurements of different types
amount of matter in an object
what is mass?
strength of gravitational force acting upon an object
what is weight?
how hard the Earth pulls at matter gravitationally
weight is something that happens...
humans have mass, but they do not have...
that which is true is immutable...
how close one measurement is to the real or accepted value
degree to which two a set of measurements is close to eachother in value (i.e., very little error value)
acceleration and net force arrows are...
they are the same
what is the relationship between the value of the friction experienced by DISC A travelling at 10 m/s^2 and the friction experienced by DISC B travelling at 20 m/s^2
Fg = m(-9.8N/kg)
how is GRAVITATIONAL FORCE found?
a = Fnet/m
how is ACCELERATION found?
an object in motion stays in motion unless acted upon by another force
What is Newton's First Law of Motion? (define)
a = Fnet/m
What is Newton's Second Law of Motion? (equation)
for every action, there is an equal and opposite reaction
What is Newton's Third Law of Motion? (define)
force applied by a surface at 90deg off the surface
what is Normal Force?
ratio between the maximum static friction to the normal force
what is the Coefficient of Static Friction?
force exerted on an object because of contact with a surface
what is kinetic friction?
ratio of weight on an object to the mass the object has
what is graviational field strength?