P1 0.0 / 5 ? PhysicsAllGCSEAQA Created by: ttt_1391391391Created on: 21-05-17 13:16 What are all objects made of Particles 1 of 26 How can objects be arranged In solids, liquids or gases 2 of 26 What are the important properties of solids All solids have a fixed shape and solids cannot be compressed 3 of 26 How are solid hold together Strong forces of attraction 4 of 26 What is kinetic energy Energy of movement. 5 of 26 Two properties of liquid Liquids take the shape of their container, and liquids are very hard to compress. 6 of 26 Liquid attraction Is not a strong as a solid, as particles in a liquid are already close together its very hard to compress a liquid 7 of 26 Two properties of Gases Very easy to compress, take shape of their container. No forces of attraction between the particles. They move randomly 8 of 26 Warm objects lose heat by? Infra-red radiation 9 of 26 Which one would release more infra-red radiation, one cooler or warmer Warmer 10 of 26 What best surfaces for good emitters and absorbers of infra-red radiation Dark and matt (NOT SHINY) 11 of 26 What type of surface is not good for infra-red radiation Light, shiny 12 of 26 What do shiny surfaces They don't absorb infra-red 13 of 26 What is conduction Takes place in solids, and especially metals Heat is passed through by conduction 14 of 26 Insulaters do what Stop heat loss, with insulaters have spaces the vibrates cant be easily passed onto new signals. 15 of 26 COnductor Gain heat 16 of 26 Convection PArticles gain energy, praticles move further apart. 17 of 26 What does SHC tell us How much energy needed to raise the temperature of 1kg of a substance by 1C 18 of 26 what "m" measured in always in exam kg 19 of 26 Evaportation is particles break away from the others, and turn into a gas 20 of 26 Why are metals good insulators They have free electrons, as they can carry heat energy 21 of 26 How do insulators work They have large spaces, this makes it harder for vibrations to pass 22 of 26 What is a u-value How good the insulator is 23 of 26 The lower the U-value... the better the insulator 24 of 26 Animals with a larger surface area... loses heat faster 25 of 26 What do vacuum flasks do Reduce heat transfer 26 of 26
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