KINEMATICS Flashcards
Describes motion using equations of motion.
KINEMATICS
Studies the position, acceleration and speed of an object
KINEMATICS
explains the terms such as acceleration, velocity, and position of objects.
Kinematics
The branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.
kinematics
It has only the magnitude
Only one dimensional
SCALAR
This quantity changes with the change in magnitude
SCALAR
It has direction and magnitude
VECTOR
It is multidimensional
This changes with magnitude and direction
VECTOR
The complete length of the length between any two path between any two points points when measured along is called —-
DISTANCE
Distance can have negative and positive values
T OR F
false
just positive
distance is a vector quantity
T OR F
FALSE
Distance is a scalar quantity as it only depends upon the magnitude and not the direction
is the direct length between any two points when measured along the minimum path between them
DISPLACEMENT
Displacement is a vector quantity as it depends upon both
T OR F
TRUE
Displacement can only be positive
t or f
false
can be positive, negative and even zero
is a scalar quantity which means it has no direction. It denotes how fast an object is moving.
Speed
the rate of distance traveled by a moving object over time
speed
the rate of displacement of a moving object over time
velocity
is a vector quantity which means it has both magnitude and direction. It denotes the rate at which the object is moving or changing position.
VELOCITY
is defined as the change in the velocity of an object with respect to time
Acceleration
can be defined as a scenario when an object is moving only under the effect of the Earth’s gravitational pull.
Freefall
As external force is exerted on the object, the motion will be constantly accelerated. This is known as ——-
freefall acceleration.
In a —–, there are two simultaneous independent rectilinear motions:
Projectile Motion
uniform velocity, responsible for the horizontal (forward) motion of the particle
Projectile motion - Along the x-axis:
uniform acceleration, responsible for the vertical (downwards) motion of the particle.
Projectile motion - Along the y-axis:
the pathway followed by an object in projectile motion is
trajectory
The horizontal distance traveled in projectile motion is known as the —-.
range
the highest point reached is called the —– in projectile motion.
maximum height
In projectile motion, Vertical velocity remains constant. Horizontal velocity changes continuously.
true or false
false
Horizontal velocity remains constant.Vertical velocity changes continuously.
true or false
in projectile motion, horizontal speed decreases as the object ascends and increases as it descends
FALSE
Vertical speed decreases as the object ascends and increases as it descends.
Projectile motion can occur at different angles.
true or false
true
