P6 0.0 / 5 ? PhysicsEquations and FormulaeGCSEAQA Created by: sophielouise277Created on: 06-10-18 15:59 What is density defined as? Its mass per unit volume 1 of 22 What is the equation for density? * 2 of 22 How to measure the mass of an object? Use an electronic balance 3 of 22 How to find the volume of a regular solid? Measure its dimensions 4 of 22 How to work out the volume of an irregular solid? Lower it into a measuring cylinder and the rise in water level is the volume 5 of 22 How to calculate the mass of water? Measure the mass of an empty beaker and then measure the mass of both and take mass of cylinder from total 6 of 22 What is the density of a solid? Much higher than a gas 7 of 22 What is the density of a liquid? Much higher than a gas 8 of 22 What is the density of a gas? Lower than a solid or a liquid 9 of 22 What is the energy transferred to a substance celled when it changes state? Latent heat 10 of 22 Where can you identify on a graph where latent heat is being transferred?* Where the temperature doesn't change 11 of 22 What is the energy stored by the particles of a substance called? Internal energy 12 of 22 What is internal energy made up of? Kinetic energy and potential energy 13 of 22 What does internal energy not include? GPE and kinetic energy caused by motion of whole substance 14 of 22 What is the pressure of a gas caused by? The force of impacts of the gas particles with the surface 15 of 22 What happens when a gas is heated? The particles gain energy, move faster, more collisions so pressure increases 16 of 22 What is the specific latent heat of fusion? The energy needed to change the state of 1KG of the substance from solid to liquid. 17 of 22 What is the specific latent heat of vaporisation? The energy needed to change the state of 1kg of the substance from a liquid to a gas 18 of 22 What are smoke molecules like compared to air molecules? Much larger 19 of 22 What is the unpredictable motion of smoke particles evidence for? Random motions of gas molecules 20 of 22 What happens to the volume of a fixed mass at a constant temperature when the pressure is increased? Its pressure is increased if volume is decreased, 21 of 22 Why can the temperature of a gas increase if it compressed rapidly? Because work is done on it and the energy isn't transferred quick enough to its surroundings 22 of 22
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