Motion Flashcards
(29 cards)
Any physical movement/change in position/place.Relative to a reference point.Change of position of object with respect to time.
Motion
When a body moves along in a straight line path.
Motion in one dimension,
A.K.A Rectilinear Motion.
When a body moves along in a curved path.
Motion in two dimensional
,A.K.A Curvilinear Motion
The position of body change - if a body moves in space.
Motion in three dimensional,
A.K.A Random motion.
SHORTEST distance from Initial position –> final position is =
Magnitude of Displacement
Length of path traversed or the total measurement.The path may not be straight.
Distance
Magnitude only,denoted by numbers and unit.
Scalar
BOTH magnitude and direction.
Vector
Distance :
- depends on path
- only magnitude
- SCALAR
- ALWAYS positive
- length of path between 2 objects
Displacement :
- overall change in position
- does NOT depend on path
- positive or negative,depends on the direction
- basically shortcut and goes straight to the point.
It depends on the rate of change of distance with time.It has SCALAR quantity.ALWAYS positive.
Speed
Represented by
U = final
V = initial
It has both magnitude and direction.
Vector Quantity
It has VECTOR quantity.It is the distance travelled per second by the body in a specific direction.Deoends on direction if positive or negative.
Velocity
SI Unit of speed
m/s
SI Unit of velocity
m/s
Speed = _______ / ________
Distance/Time
Velocity = _______ / ________
Displacement/Time
The rate of change of velocity with time.Vector Quantity.
Symbol = a
Acceleration
Acceleration = ________/________
Velocity/Time
What is it called when velocity decreases with time,acceleration is negative.
Retardation/Deceleration
Types of Motion
- Up and Down
- straight line
- round and round
- zigzag
- back and forth
Irregular motion like small suspended particles of gas.
Random Motion
Rotation is a circular movement of an object around a center.
Rotational Motion
Uniformly moving in the same line or direction.
Translatory Motion
