Required Practical: Determination of g Aims of the Experiment The overall aim of the experiment is to calculate the value of the acceleration due to gravity, g This is done by measuring the ...
Terminal Velocity For a body in free fall, the only force acting is its weight and its acceleration g is only due to gravity. The drag force increases as the body accelerates This increase i...
Drag Forces Drag forces are forces that oppose the motion of an object moving through a fluid (gas or liquid) Examples of drag forces are friction and air resistance Drags forces: Are always...
Projectile Motion The trajectory of an object undergoing projectile motion consists of a vertical component and a horizontal component These need to be evaluated separately Some key t...
SUVAT Equations The SUVAT equations are the equations of motion used for objects in constant acceleration They contain the following variables: s = displacement (m) u = initial velocity (m ...
Motion Graphs Gradients The gradient of a displacement-time graph is the velocity The gradient of a velocity-time graph is the acceleration Area Under the Graph The area under a velocity-time graph...
Displacement, Speed, Velocity & Acceleration Scalar quantities Scalar quantities only have a magnitude (size) Distance: the total length between two points Speed: the total distance trav...
Centre of Mass The centre of mass of an object is the point at which the weight of the object may be considered to act The position of the centre of mass of uniform regular solid is at its c...
Couples A couple is a pair of equal and opposite coplanar forces that acts to produce rotation only A couple consists of a pair of forces that are: Equal in magnitude Opposite in direction P...
