P1 Keywords

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  • Created by: Curlot
  • Created on: 25-05-14 10:28
Infrared Radiation
The transfer of thermal radiation by electromagnetic waves
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Thermal Radiation
The transfe of infrared radiation; doen't involve particles
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Kinetic Theory
A theory that explains the physical properties of the movement of particles
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Energy Transfer
A measure of how much work is done on an object.
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Conduction
The energy transfer in solids without the substance itself moving
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Conductor
A material that readily transfers energy by atom vibration or electrical energy through the movement of free electrons
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Insulator
A material that doesn't conduct well
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Convection
The energy transfer through movement in liquids and gases.
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Evaporation
The change from a liquid into a vapour below the boling point of the liquid
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Condensation
The change of a vapour into a liquid accompanied by heat transfer
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U-value
A measure of the effectiveness of a material as an insulator
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Specific Heat Capacity
The amount of energy required to change the temperatue of 1kg of a material by 1 degree; measured in J/kgC
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Sankey Diagram
An energy transfer diagram where the widths of arrows are proportional to the amount of energy used.
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Efficiency
The ratio of energy (Useful) output to total energy input expressde as a percentage or decimal
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Electrical energy
Energy of electrical charge or current; measured in joules (J)
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Power
Work done or energy transfered om a given time; units of watts (w)
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Fossil Fuel
A fuel formed underground over millions of years from the remains of dead plants and animals
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Nuclear fuel
Uranium and plutonium used in nuclear power station to porvid the transfer of energy by heat.
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Biofuel
A solid, liquid or gas obtained from lifeless or living biological material
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Non-renwable energy source
An ebergy source that can't be replaced as fast as it is used.
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Renweable energy source
An ebergy source that can be replaced faster than it is used.
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National Grid
A network of power lines and cable that carries electricity from the power station to the consumer.
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Transformer
An electrical device used to change the voltage or potential difference of alternating currents.
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Potential Difference
The energy transfer by unit charge passing from one point to another; measured in volts
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Transverse Wave
A wave where the oscillations are perpendicular to te direction of energy transfer
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Longitudinal Wave
A waver where the oscillations are parallel to the direction of energy transfer.
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Wavelength
The distance between two successive peaks or troughs in a wave.
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Amplitude
The maximum disturbance/ vibration measured from mid point
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Frequency
The number of cycles or oscillations that occur in 1 second
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Wave equation
v= f x /\
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Reflection
A change in direction of a wave when striking a plane surface
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Normal line
The line constructed at 90degrees to the reflecting surface at the point of incidence.
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Sound wave
Forward and backward vibations within a material or medium;sounds waves are longitudinal waves;can't traval in a vaccum.
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Echo
A reflected sound wave
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Doppler effect
The cahnge in wavelength or frequency associated with a moving source
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Red-shift
The shift in light or other electromagentic waves to a longer wavelength
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Big Bang
The massive explosion that sent all matter outwards signalling the start of the universe. Creating time and space
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Cosmic Microwave Background Radiation
(CMBR) Electromagnetic radiation that fills the entire Universe; remnant of the Big Bang a can prove that the Big Bang happened
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Other cards in this set

Card 2

Front

The transfe of infrared radiation; doen't involve particles

Back

Thermal Radiation

Card 3

Front

A theory that explains the physical properties of the movement of particles

Back

Preview of the back of card 3

Card 4

Front

A measure of how much work is done on an object.

Back

Preview of the back of card 4

Card 5

Front

The energy transfer in solids without the substance itself moving

Back

Preview of the back of card 5
View more cards

Comments

Dan1234567891011

this has made me so happy that Ive found such a good revision source :)

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