Science 1 Marks Question

A dark coloured object.

Thermometer means to measure our body temperature is called clinical thermometer.

Water, air, etc.

In case of two thin blankets, there is an air gap which does not allow heat pass out from the body and it is not as such as in case of one thick blanket.

No.

Because hot air rises up during day time, and a convection current is developed. So kites and eagles start moving along this convectional current without happing their wings.

The water and air are poor conductors of heat.

Tea is generally served in China clay cup and plates because China clay is a bad conductor of heat which do not allow the heat to pass through it and hence keep the tea hot.

Heat always from a body of higher temperature to a body of lower temperature, until the temperature of both bodies are equal, then the two bodies are said to be in thermal equilibrium.

In solids, generally, the heat is transferred by the process of conduction because particles of solids are closely packed and heat is transferred from the hotter end to the colder end of an object.

Radiation is the mode of transfer of heat in which medium is not required.

Kink prevents mercury level from falling on its own.

Dark coloured clothes.

A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of conduction.

The hotness of an object is determined by its temperature.

By using thermometer, we can measure the degree of hotness of a body.

No medium is required for transfer of heat by the process of radiation.

We are advised not to hold the thermometer bulb while reading ii, as the level of mercury increases from the actual reading due to our body temperature.

Because of the kink present in the thermometer, the mercury does not fall or rise.

There is a layer of air in between the blankets. Since air is bad conductor of heat prevent body heat to escape out, two thin blankets provides more heat than one thick blanket.

There is a layer of air in between the blankets. Since air is bad conductor of heat prevent body heat to escape out, two thin blankets provides more heat than one thick blanket.

Thermometer.

Wool is a poor conductor of heat.

When a pan is removed from the fire, it loses heat to the surroundings by radiation and it cools down.

Yes, by conduction.

Heat travels in air through convection.

Clinical thermometer and laboratory thermometer.

All hot bodies radiate heat.

As the temperature increases, then expansion in mercury takes place which leads to the rise in the level of mercury in thermometer.

Temperature is defined as the degree of hotness or coldness of a body.