Core science paper 1 physics

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  • Created by: homer00
  • Created on: 10-05-16 08:48
How can heat energy be transferred?
Conduction, convection and radiation
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How can heat radiation be transferred?
Infrared radiation
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What is conduction?
Conduction of heat energy is the process where vibrating particles pass on their extra kinetic energy to neighbouring particles.
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What is convection?
Convection occurs when the more energetic particles move from the hotter region to the cooler region and take their heat energy with them.
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What is evaporation?
Evaporation is when particles escape from a liquid at temperatures lower than boiling point.
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* What is the equation for payback time
Initial cost Annual saving
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What are the 9 types of energy?
Kinetic, heat, light, Gravity, chemical, sound, electrical& elastic.
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What is the conservation of energy principle?
Energy can be transferred, usefully from one form to another, stored or dissipatated but can never be created or destroyed.
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* What is the formula for efficiency?
Efficiency Power X time
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What is a snakes diagram?
Shows how much of the total energy is useful and how much is wasted
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* What is e equation for energy?
Energy Power X time
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* What is the formula for the number of units used?
No of units= power X time
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* What is the formula for cost
No of units X price of units
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Other cards in this set

Card 2

Front

How can heat radiation be transferred?

Back

Infrared radiation

Card 3

Front

What is conduction?

Back

Preview of the front of card 3

Card 4

Front

What is convection?

Back

Preview of the front of card 4

Card 5

Front

What is evaporation?

Back

Preview of the front of card 5
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