needed to change the state of temperature against the substance. time. Evaluate data on the melting points and boiling points of different substances linked to the strength of the forces between the particles. Explain what is happening at each stage of the heating curve produced. 4.1.1.4 The increase in Define the term specific 1 Describe and explain how the Plan a practical to cont. temperature of a system heat capacity and amount of water in a kettle investigate the rate of depends on the mass of distinguish between it and affects how quickly it boils. heating of various the substance heated, the term specific latent metals using a Explain why a pan of cooking the type of material and heat. joulemeter to determine oil heats up faster than a pan the energy input. the energy input. If no MS1a, 3c, 3d of water, with the same mass joulemeter is available, The following equation, of each, in terms of specific Use this equation to use an ammeter, I, a given on the Physics heat capacity. calculate energy changes voltmeter, V, and heat equations sheet, during changes of state. Why does a half-full kettle boil the material for a fixed applies: faster than a full one? amount of time, t. Calculate the energy Why do sea breezes change transferred, E, using: direction day and night?
needed to change the state of the substance. Evaluate data on the melting points and boiling points of different substances linked to the strength of the forces between the particles. Explain what is happening at each stage of the heating curve produced. temperature against time. 4.1.1.4 cont. The increase in temperature of a system depends on the mass of the substance heated, the type of material and the energy input. The following equation, given on the Physics equations sheet, applies: Define the term specific heat capacity and distinguish between it and the term specific latent heat. MS1a, 3c, 3d Use this equation to calculate energy changes during changes of state. 1 Describe and explain how the amount of water in a kettle affects how quickly it boils. Explain why a pan of cooking oil heats up faster than a pan of water, with the same mass of each, in terms of specific heat capacity. Why does a half-full kettle boil faster than a full one? Why do sea breezes change direction day and night? Plan a practical to investigate the rate of heating of various metals using a joulemeter to determine the energy input. If no joulemeter is available, use an ammeter, I, a voltmeter, V, and heat the material for a fixed amount of time, t. Calculate the energy transferred, E, using:
AQA-8465-SOW-BBLOCK.DOCX