~ Physics P6: Molecules and Matter ~ 0.0 / 5 ? PhysicsMolecules and matterGCSEAQA Created by: flowerboy6327Created on: 15-01-22 14:51 Physical change: A change in which no new substances are produced. 1 of 12 Boiling point: The temperature at which a pure substance boils or condenses. 2 of 12 Freezing point: The temperature at which a pure substance freezes. 3 of 12 Melting point: Temperature at which a pure substance melts or freezes (solidifies). 4 of 12 Boyle's law: For a fixed mass of gas at constant temperature, its pressure multiplied by its volume is constant. 5 of 12 Pressure: Force per unit cross-sectional area; for a force acting on a surface, at right angles to the surface. 6 of 12 Units of pressure: The pascal (Pa) / Newton per square metre (N/m2). 7 of 12 Density: Mass per unit volume. 8 of 12 Internal energy: The energy of the particles of a substance due to their individual motion and positions. 9 of 12 Latent heat: The energy transferred to or from a substance when it changes its state. 10 of 12 Specific latent heat of fusion: energy needed to melt 1 kg of a substance, with no change of temperature. 11 of 12 Specific latent heat of vaporisation: Energy needed to boil away 1 kg of a substance, with no change of temperature. 12 of 12
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