motion, speed and velocity
TRANSCRIPT
motion
Motion: definitionmotion is a change in position of an
object with respect to time. Motion is typically described in terms of displacement, distance (scalar), velocity, acceleration, time and speed.
Types of motionTypes of motion
translatory motion
ROTATORY MOTION
OSCILLATORY MOTION
VIBRATORY MOTION
PERIODIC MOTION
NON-PERIODIC MOTION
ROLLING MOTION
RANDOM MOTION
MULTIPLE MOTION
RECTILINEAR MOTION
CURVILINEAR MOTION
Uniform motion
Non-uniform motion
TRANSLATORY motionWhen an object moves in such a way that every
point of the object moves the same distance in the same time, then the object is said to be in translatory motion.
There are two types of translatory motion –Rectilinear motion curvilinear motion
When an object moves WHEN AN OBJECT MOVES in a straight line. ALONG A CURVED PATH.
ROTATORY MOTIONWHEN EVERY POINT ON A MOVING OBJECT
MOVES AROUND A CENTRE OR AXIS OF ROTATION, IT IS SAID TO BE IN ROTATORY MOTION.
OSCILLATORY MOTIONTHE TO ANDFROM MOTION OF AN OBJECT
ABOUT A FIXED POINT IS CALLED OSCILLATORY MOTION.
Vibratory motionWhen a part of an object moves to and fro
about its fixed position, it is said to be in vibratory motion.
Random motionIf an object keeps on changing its motion from
one type into another, it is said to be in random motion.
Multiple motionWhen an object possesses more than one
motion at the same time, it is said to be in multiple motion.
Periodic motionWhen an object repeats its motion after a
fixed interval of time, is said to be in a periodic motion.
non-periodic motionWhen an object does not repeat its motion
after a fixed interval of time, it is said to be in non periodic motion.
Rolling motionif an object undergoes translatory as well as
rotatory motion, it is said to be in rolling motion.
Uniform motionIf an object covers equal distances in equal
intervals of time, it is said to be in uniform motion.
Non-uniform motionIf an object covers equal distances in unequal
intervals of time, it is said to be in non-uniform motion.
speed
Speed : definition
Average speedaverage speed is defined as the total distance covered over the time interval. For example, if a distance of 80 kilometres is driven in 1 hour, the average speed is 80 kilometres per hour.
velocity
Velocity : definitionVelocity is a physical vector quantity; both
magnitude and direction are needed to define it.