Physics and Practical Skills Quiz

Define the term 'density' and state its SI unit.

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Describe how the arrangement of particles differs between solids, liquids, and gases.

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Explain why gases can be compressed more easily than solids.

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Calculate the density of a material with a mass of 500 g and a volume of 250 cm³.

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Describe the changes in particle energy during melting.

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Explain the process of sublimation with an example.

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A student heats a substance from solid to gas. Sketch a temperature-time graph for this process.

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Explain why the temperature remains constant during a change of state.

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Compare the energy of particles in a solid and a gas.

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Describe how internal energy changes when a substance is heated.

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