Revison for Physics Unit 1a 0.0 / 5 ? PhysicsUnit 1GCSEAQA Created by: StressedOutStudent22Created on: 01-05-16 15:10 What do all objects emit? Infrared radiation 1 of 28 What is the best type of surface for absorbing radiation? Matt Black 2 of 28 What is the theory used to explain the movement of particles in solids, liquids and gases? Kinetic Theory 3 of 28 Which heat transfer occurs mainly in solids? Conduction 4 of 28 Why are metals good conductors of heat? Free electrons 5 of 28 Which heat transfer only happens in liquids and gases? Convection 6 of 28 Why does hot liquid/gas rise? Less Dense 7 of 28 What is the name of the process when a gas turns to liquid? Condensation 8 of 28 What is the name of the process when a liquid turns to a gas? Evaporation 9 of 28 Name one way the rate of condensation will be increased? Density is higher 10 of 28 Name one way the rate of evaporation is increased? Airflow is greater 11 of 28 Name one thing the rate of heat energy transfer depends on? Surface area and Volume 12 of 28 Name one way a vacuum flask is designed to limit heat transfer? SIlvered Shiny Surface 13 of 28 Name one way of insulating the home? Double Glazing 14 of 28 Which type of heat transfer is involved in draught proofing? Convection 15 of 28 Which type of heat transfer is involved in loft insulation? Conduction and convection 16 of 28 Which type of heat transfer is involved in cavity wall insulation? Convection Conduction Radiation 17 of 28 Which type of heat transfer is involved in thick curtains? Conduction Convection Radiation 18 of 28 Which type of heat transfer is involved in hot water tank jacket? Conduction Radiation 19 of 28 What is the name for the number that shows how good something is at insulating? U-Value 20 of 28 The lower the U-Value the... Insulator? Better 21 of 28 What is the name for the number that shows how much energy something can store? Specific HEat Cpacity 22 of 28 What is the formula for Specific Heat Capacity? E=MxCxTC 23 of 28 What liquid has a really high Specific Heat Capacity? Water 24 of 28 What is the main wasted type of energy? Heat 25 of 28 What type of diagrams are used to show the efficiency of a device? Sankey diagrams 26 of 28 What are the main units of energy? kWh 27 of 28 How much is one unit of energy? 1kWh 28 of 28
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