kinematics Flashcards
what is Scalar
Is Quantity that has only Magnitude
whats magnitude
it is value and unit
how can Scalars be added
by ordinary addition
what is vector
quanitiy that have magnitude and direction
how are vectors represented
by an arrow
how can be vectors added
by vector addition
The length of the arrow indicates the magnitude of the vector, and the direction of the vector is indicated by the arrowhead.
what are Kinematics
Part of Physics concerned with motion of object withouy being concerned with the forces that cause the motion
what is motion
change in location of body
what is path
line which physical body described when it is in motion
what are kinds of path
straight line,curvy line,square
is Path physical quantity
No because it doesnt have unit
what are the types of motion
straight line motion-The path is in straight line
curved live motion-the Path is in curved line
what is distance
lenght of the path we mesure in time
it is scalaar quantity
It shows how much ground has an object covered
what is displacement
vector quantity
shows how far an object had traveled]
it is objects overall change in positionwh
what is speed
scalar quantity
refers how fast an object is moving
means the distance traveled in given time
what is velocity
vector quanitity
s[eed in partical direction
direction of velocity is same as object has traveled
name types of speed
constant
instatanous
avarage
define constant speed
object has constant speed
object will cover same amount of distance every interval
define instatanous speed
it is speed determined over very small interval
define average speed
it is average speed of objrct
What physical quantity is Acceleration
Vector physical quantity
whats definition of Acceleration
the rate at ehich object change its velocity
shows the change in velocity in unit time
when is Acceleration positive
when the speed is incresing
when is Acceleration negative
when speed is decreasing
how is negative Acceleration called
deceleration
id the object Acceleration then the direction of Acceleration is ______ _____ as the direction of motion
the same
is the object deceleration then the direction of deceleration is __________ as the direction of motion
opposite
define constant Acceleration
an Acceleration object will change velocity by same amount each second
define non-constant Acceleration
an accetation object will vhange its velocity by diffriend amounth each seconf
