AQA A Level Physics复习笔记4.4.1 Newton’s First Law
Newton's First Law Newton's First Law states: A body will remain at rest or move with constant velocity unless acted on by a resultant force If the forces on a body are balanced (the resulta...
AQA A Level Physics复习笔记4.3.7 Required Practical: Determination of g
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 ...
AQA A Level Physics复习笔记4.3.6 Terminal Velocity
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...
AQA A Level Physics复习笔记4.3.5 Drag Forces
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...
AQA A Level Physics复习笔记4.3.4 Projectile Motion
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...
AQA A Level Physics复习笔记4.3.3 SUVAT Equations
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 ...
AQA A Level Physics复习笔记4.3.2 Motion Graphs
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...
AQA A Level Physics复习笔记4.3.1 Motion Along a Straight Line
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...
AQA A Level Physics复习笔记4.2.3 Centre of Mass
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...
