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______ is a device that maintains the temperature of a place or an object constant.
Concept: undefined >> undefined
A Thermostat is a device that can measure the heat capacity of the liquid in the container.
Concept: undefined >> undefined
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What is the function of a thermostat in a device?
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Name some appliances which use a thermostat.
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Write the physical properties of non–metals.
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What are the two types of valency?
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Write a note on valency with respect to –
- Chlorine
- Oxygen.
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Name the process by which temporary hardness is easily removed from the water.
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What is the reason for the hardness of water?
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Mention the symptoms and preventive measures undertaken for foot and mouth disease in animals.
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The unit of viscosity is
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Which has greater viscosity, oil or honey? Why?
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Explain the working of thermos flask.
Concept: undefined >> undefined
Which of the following may be caused by noise?
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What are the hazards of noise pollution?
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Mention a few measures to be taken to reduce the effect of noise pollution.
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How does planting trees help in reducing noise pollution?
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What steps should be taken to reduce the effect of noise pollution?
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