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Heat

Revision of Heat chapter

QuestionAnswer
What unit is heat measured in? Joules
What happens solids, liquids and gases as you heat them? They expand
What happens solids, liquids and gases as you cool them? They contract
How does heat travel through a liquid? Convection
How does heat travel through a solid? Conduction
How does heat travel through the air or a vacuum? Radiation
Which surface radiates heat better...black or white? Black
Name the equipment used to show that solids expand when they're heated and contract when cooled. Ball and ring
List the following metals in order of how well they conduct heat: brass, aluminium, iron copper Aluminium, Copper, Brass, Iron
What do you call substances that do not allow heat to travel through them easily? Insulators
What happens to the boiling point of water if you increase the pressure? It increases
Give an application of the fact that the boiling point of water increases with increased pressure. A pressure cooker
What is the boiling point of water? 100 degrees celsius
What do you call the extra heat taken in, or given out, during a change of state? Latent Heat
List some methods of reducing heat loss from your house. Double Glazed Windows, Draught excluders, Attic insulation, Cavity Wall Insulation
Name the two liquids commonly used in thermometers. Alcohol and Mercury
What happens to the boiling point of water if you reduce the pressure? It decreases
Created by: joeykenn
 

 



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