Introduction
The study of motion, describing how objects move without focusing on what causes the motion. It deals with concepts like position, displacement, velocity, acceleration, and time.
What is Kinematics?
In kinematics, this term represents the change in an object's position over time and is a vector quantity?
What is displacement?
There are _____ supplementary equations.
What are Three?
A particle moving with a velocity of 15ms-1 accelerates uniformly to a velocity of 25ms-1 in 30 seconds. Calculate the displacement of the particle.
600m
This field utilizes kinematics most.
What is physics?
The following formulas are used for calculating _________.
Formula 1: v= u + at
Formula 2: v2 = u2 + 2as
What are the formulas for calculating velocity?
These equations are considered supplementary in the study of motion since they are __________.
What is: Interconnected and derived from the same fundamental equations?
A vehicle moving with a constant acceleration of 16ms-2 reaches a velocity of 24 ms-1 in 8 seconds. Calculate the displacement of the vehicle.
-320m
The rate of change of an object’s distance with respect to time.
What is speed?
Of the five equations, ________ are used for finding displacement?
What are three?
a=v−u/t
What is the supplementary equation for finding acceleration?
A car travelling with a velocity of 8ms-1. It then accelerates uniformly and covers a displacement of 5 1/2 m. If the velocity reached is 14ms-1, evaluate
(a) the acceleration (b) the time taken to cover the displacement.
a)12ms b)0.5s
_______ refers to an increase in speed, while _________ is a decrease in speed.
What is acceleration and retardation?
This represents and object's initial velocity in the first equation of motion.
What does "u" represent in the formula v= u+ at?
the supplementary equation of motion when "t" is the subject.
What is t=v−u/a?
A particle moves with a uniform acceleration of 4ms-2. Calculate its initial velocity if
(a) its velocity is 18ms-1 after 5 seconds (b) its velocity is -5ms-1 after 3 seconds
(a) -2ms (b) -17ms
This term refers to the change in velocity over time and is represented as the derivative of velocity with respect to time.
What is acceleration?
This equation describes the relationship between an object's displacement (s), its initial velocity (u), its acceleration (a), and the time elapsed (t).
What is s = ut + ½at²
The equation for displacement in terms of initial velocity, final velocity, and time when acceleration is unknown.
What is s = (v + u)/2 * t ?
A particle moves with a uniform acceleration of 6ms-2. Evaluate the time taken if:
(a) its initial velocity is 2ms-1 and its final velocity is 20ms-1
(b) its initial velocity is -3ms-1 and its final velocity is 27ms-1
a) 3s b)5s