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Word-for-word definitions (Forces (Vector: A quantity with magnitude and…
Word-for-word definitions
Electricity
Potential difference
: A measure of the energy transferred by each coloumb of charge / The driving force that pushes the charge round. (V)
Current
: The flow of electric charge around a circuit (A)
Resistance
: Anything in a circuit which slows the flow down (Ω)
Energy
Specific heat capacity
: The amount of energy required to heat 1kg of a substance by 1°C (J/kg°C)
Power
: Rate of energy transfer (W)
Conduction
: The process where vibrating particles transfer energy to neighbouring particles' kinetic energy stores
Convection:
Where energetic particles move away from hotter to cooler regions
Thermal conductivity
: A measure of how quickly energy is transferred across a material
Temperature
: The measure of the kinetic energy in the particles of a substance
Internal Energy
: The energy of the particles of a substance due to their individual motion and positions
Renewable energy
: Energy produced from natural sources that never runs out
Forces
Vector
: A quantity with magnitude and direction
Weight
: The force acting on an object due to gravity (N)
Mass
: The amount of particles in an object (kg)
Force
: Something that changes the motion of an object (N)
Resultant Force:
The overall single force acting on the object, that has the same effect as all the forces acting on it
Centre of mass/gravity
: A point in an object where mass is considered to be concentrated
Terminal velocity
: The velocity reached by an object when its drag is equal and opposite to the force making it move, so there is no resultant force
(In)elastic deformation
: An object has been (in)elastically deformed if it can('t) go back to its original shape and length when the force is removed
Moment
: The turning effect of a force (Nm)
Momentum
: The quantity of motion of a moving object; the product of its mass and velocity (kg m/s)
Pressure
: The amount of force per unit area (Pa)