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Learn: Density and Specific Heat Capacity
OCR GCSE Physics J249
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Welcome!Today we'll explore density and specific heat capacity. These are key concepts in understanding matter and energy. Let's start by breaking them down step by step.
What is Density?Density measures how much mass is packed into a given volume. It is calculated using the formula: Density = Mass ÷ Volume. Objects with higher density feel heavier for their size.
Quick check: Which formula represents density?
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What is Specific Heat Capacity?Specific heat capacity is the amount of energy needed to raise the temperature of 1 kg of a substance by 1°C. It is calculated using the formula: Energy = Mass × Specific Heat Capacity × Temperature Change. Different materials store and transfer heat differently.
The specific heat capacity formula is: Energy = Mass × {{blank0}} × {{blank1}}.
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Factors Affecting Specific Heat CapacityThe specific heat capacity of a material depends on its composition. For example, metals usually have lower specific heat capacities than water, meaning they heat up faster with the same energy input.
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Review Time!Great work! You've learned about density, specific heat capacity, and their factors. Let's test your understanding now.
Which of the following statements are true? (Select all that apply.)
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Final ThoughtsWell done! You’ve mastered key concepts about density and specific heat capacity. Keep practising, and you'll get even better at understanding matter and energy.
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