Physics 1

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  • Created by: Harriet
  • Created on: 15-01-13 10:07
Heat is transfered in 3 different way
Conduction, Convection and Radiation
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All objects continually emmit and absorb what?
Infrared Radiation
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Good condictions for infrared radiation
datt, matt sufaces absorb infara radiation
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Kinetic theory can explain the tree states of matter, what are they?
Solids, Liquids and Gases
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Conduction of hear main occurs in?
Solids
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Conduction of heqat energy is the process where...
viberating particles pass on thier extra kinetic energy to neighbouring particles
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Metals are good conductors because..
they have free electrons
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Convections occurs in..
Liquids and Gases only
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Convection occurs when..
the more energetic particles move from the hotter region ot the cooler region and take their heat energy with them
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Convection currents are all about...
CHANGES IN DENSITY
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Condensation is when...
gas turns to liquid
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Evaportation is when...
liquid turns to gas
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The rates of evaporation will be faster if the..
-Temperature is higher, -Density is lower,-Surface area is larger, -airflow over the liquid is greater
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The rate of condensation will be faster if the...
-temperatiure of the gas is lower, -temperature of the sufrace the gas touches is lower, -density is higher, -airflow is less
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5 types of insulation
cavity wall insulation,loft insulation, draught-proofing, hot water tank jacket, thick curtains
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Specific heat capacity tells you...
how much energy a substance can store
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Specifiv heat capacity equation is..
E=m x c x 0C (temperature change)
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Nine types of energy
Magnetic, Kinetic, Heat, Light, Gravitational Potential, Chemical, Sounds, Elastical Potential, Electrical, Nuclear
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Energy can be...
transferred usefully, stored or dissipated
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energy can't be..
created or destroyed
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energy is only useful when..
it can be converted from one form to another
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No device is 100% efficient and the wasted energy is usually spread out as..
heat
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Other cards in this set

Card 2

Front

All objects continually emmit and absorb what?

Back

Infrared Radiation

Card 3

Front

Good condictions for infrared radiation

Back

Preview of the front of card 3

Card 4

Front

Kinetic theory can explain the tree states of matter, what are they?

Back

Preview of the front of card 4

Card 5

Front

Conduction of hear main occurs in?

Back

Preview of the front of card 5
View more cards

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