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Cambridge IGCSE Physics practice

Paper 4 structured question: Radiation

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Radiation

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Paper 4Theory (Extended)1 marks

Consider a thermally insulated container.

Description

Thermal Insulation and Energy Balance

A thermally insulated container holds a liquid. The liquid is heated from below. Describe what happens to the temperature of the liquid and explain why.

  1. a

    State what happens to the temperature of the liquid as it is heated.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Radiation

Paper 4Theory (Extended)1 marks

Description

Energy Transfer and Temperature

An object is placed in a room where it absorbs heat from the surroundings. It also loses heat to the environment. For the object to maintain a constant temperature, what must occur?

  1. a

    State the condition necessary for the object to maintain a constant temperature.

    Aim for approximately 1 distinct marking point.

    [1]