Term

Definition
The angle subtended at the center of a circle by an arc of length equal to the circle's radius 


Term
Specific Latent Heat of Vaporisation 

Definition
The quantity of energy per unit mass required to change a substance at constant temperature from a liquid into a vapor 


Term
Specific Latent Heat of Fusion 

Definition
The quantity of energy per unit mass required to change a substance at constant temperature from a solid into a liquid 


Term

Definition
Acceleration is directly proportional to the displacement, and in the opposite direction to the displacement 


Term

Definition
The build up of a largeamplitude oscillation when the frequencies of the vibrating objects match 


Term
Principle of Conservation of Momentum 

Definition
In any direction, in the absence of external forces, the total momentum of a system remains constant 


Term

Definition
The quantity of thermal energy required to raise the temperature of a unit of mass of a substance by a unit temperature rise 


Term

Definition
Defined as FΔt. It equals the change in momentum of a body also equal to the area beneath a force/time graph 


Term

Definition
The gas constant for a single molecule. k = 1.38 x 10²³ Jkˉ¹ 


Term

Definition
The sum of the random distributions of kinetic and potential energies of all the molecules in the body 


Term

Definition
A gas that has internal energy only in the form of random kinetic energy 


Term

Definition
The volume of a fixed mass of gas is inversely proportional to the pressure exerted on it, provided the temperature is kept constant 


Term

Definition
The period of a planet squared is directly proportional to the mean radius of it's orbit cubed. T²∝r³ 


Term
Gravitational Field Strength 

Definition
At any point it is the force acting per unit mass at that point 


Term

Definition
For a fixed mass of an ideal gas at constant pressure, its volume (V) is proportional to the ideal gas temperature. V∝T 


Term

Definition
pV=nRT // pV=NkT p=pressure; V=volume; n=no. of moles; R=gas constant; T=absolute temp 


Term

Definition
A force is necessary to change the state of rest or uniform motion in a straight line of a body 


Term

Definition
The rate of change of momentum of an object is directly proportional to the net force acting on it 


Term

Definition
When body A exerts a force on body B, then body B exerts a force on body A that is equal, opposite in direction, and of the same type 


Term
Newton's Law of Gravitational Attraction 

Definition
The gravitational force of attraction between two bodies is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them 


Term

Definition
Defined as the mass of an object multiplied by its velocity. p=mv 


Term

Definition
1kWh is the energy used/provided by a 1kW device in 1 hour 


Term

Definition
The product of 2π and the frequency, or 2π divided by the period 


Term

Definition


Term

Definition


Term

Definition
Force acting towards the center of the circle, perpendicular to the velocity 


Term

Definition
Deliberately reducing the amplitude of an oscillation 


Term

Definition
The distance an object has moved from it's mean (equilibrium) position 


Term

Definition
The net force is zero. i.e. weight = reaction force 


Term

Definition
The number of oscillations per unit time at any point 


Term

Definition
The region in which a force operates 


Term

Definition
A collision in which momentum is conserved, but kinetic energy is not 


Term

Definition
Contains 6.02 x 10²³ particles 


Term

Definition
The force that gives a mass of 1kg an acceleration of one meter per second every second 


Term

Definition
The time taken for the object to complete one revolution. It is related to the speed (v) and the radius (r) by: v =2πr/T 


Term
Perfectly Elastic Collision 

Definition
A collision in which no momentum or kinetic energy is lost 


Term

Definition
The time it take to complete one orbit. For the Earth it is one year 


Term

Definition
The time for one complete pattern of oscillation to take place at any point 


Term

Definition
Whether the substance is a solid, liquid or gas 


Term

Definition
Two objects at the same temperature 

