CIE A Level Physics復習筆記3.1.5 Force & Momentum
Force & Momentum Force is defined as the?rate of change of momentum?on a body ? Force is equal to the rate of change in momentum The change in momentum is defined as the final momentum minus th...
CIE A Level Physics復習筆記3.1.4 Linear Momentum
Linear Momentum Linear momentum (p) is defined as the product of mass and velocity Momentum is the product of mass and velocity Momentum is a vector quantity - it has both a magnitude and a directi...
CIE A Level Physics復習筆記3.1.3 Newton's Laws of Motion
Newton's Three Laws of Motion Newton’s First Law:?A body will remain at rest or move with constant velocity unless acted on by a resultant force Worked Example If there are no external forces actin...
CIE A Level Physics復習筆記3.1.2 Force & Acceleration
Force & Acceleration As stated on the previous page, Newton's Second Law of Motion tells us that objects will accelerate if there is a resultant force acting upon them This acceleration will be...
CIE A Level Physics復習筆記3.1.1 Mass & Weight
What is Mass? Mass is the measure of the amount of matter in an object Consequently, this is the property of an object that resists change in motion The greater the mass of a body, the smaller the ...
CIE A Level Physics復習筆記2.1.9 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 terms to know, ...
CIE A Level Physics復習筆記2.1.8 Acceleration of Free Fall Experiment
Acceleration of Free Fall Experiment A common experiment to determine acceleration of a falling object which can be carried out in the lab Apparatus Metre rule, ball bearing, electromagnet, electro...
CIE A Level Physics復習筆記2.1.7 Solving Problems with Kinematic Equations
Solving Problems with Kinematic Equations Step 1:?Write out the variables that are given in the question, both known and unknown, and use the context of the question to deduce any quantities that a...
CIE A Level Physics復習筆記2.1.6 Deriving Kinematic Equations
Deriving Kinematic Equations of Motion The kinematic equations of motion are a set of four equations which can describe any object moving with?constant?acceleration They relate the five variables: ...
CIE A Level Physics復習筆記2.1.5 Gradient of a Velocity-Time Graph
Gradient of a Velocity-Time Graph Acceleration?is any change in the velocity of an object in a given time As velocity is a vector quantity, this means that if the?speed?of an object?changes, or its...
CIE A Level Physics復習筆記2.1.4 Gradient of a Displacement-Time Graph
Gradient of a Displacement-Time Graph Displacement-time graphs show the changing position of an object in motion They also show whether an object is moving forwards (positive displacement) or backw...
CIE A Level Physics復習筆記2.1.3 Area under a Velocity-Time Graph
Area under a Velocity-Time Graph Velocity-time graphs show the speed and direction of an object in motion over a specific period of?time The area under a velocity-time graph is equal to the?displac...
