When there is morning frost on the grass in an open park, why is frost unlikely to be found on the ground directly beneath park benches?

Q: What is vulnerabilty of security guards during heat waves? What problem they might face during heat…

A: Heat is just energy in transit. Flow of energy thermal is heat. It increases temperature. It flows…

Q: Loose-fitting white clothing covering most of the body is ideal for desert dwellers, both in the hot…

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Q: Why are icebergs often surrounded by fogs?

A: Condensation can be defined as the change of phase of water from gaseous to liquid.

Q: Why is evaporation a cooling process?

A: Evaporation is the process in which water changes its phase from liquid to gaseous.

Q: At night, the surface of the earth cools, mostly by radiation. The surface radiates energy upward;…

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Q: Why does blowing over hot soup cool the soup?

A: Evaporation causes cooling of liquid as highly energetic molecules get wiped off the surface when…

Q: Why is whitewash sometimes applied to the glass of florists’ greenhouses in the summer?

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Q: On a clear, cold night, why does frost tend to form on the tops, rather than the sides, of mailboxes…

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Q: Cite three examples in which Thermos bottle inhibits heat transfer?

A: The Thermos bottles use thermal isolation to prevent the transfer of the thermal energy or heat.

Q: What is a thermocouple?

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Q: Why will spraying fruit trees with trees with water before a frost help to protect the fruit from…

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Q: Why are such materials as wood, fur, feathers, and even snow good insulators?

A: The materials which allow the free passage of electricity through them with very low resistance are…

Q: In summer cotton dresses should be preferred, Why?

A: Step 1During summers everyone tends to perspire a lot as a mechanism of our body to keep us cool.…

Q: You know that the windows in your warm house get wet on a cold day. But can moisture form on the…

A: On a cooler day, the window surface will be probably cold enough that condensation will form as the…

Q: Why do we feel hot after a long period of running or doing exercise?

A: When we do running or any exercise, it will lead to increase in the muscular activity.

Q: How can an iceberg survive for several weeks floating in sea water that is above freezing point?

A: The icebergs are the part of the glaciers that is formed during calving or splitting of glaciers.…

Q: Why is it that a tub of water placed in a farmer's canning cellar helps prevent canned food from…

A: Canning cellar is a place build by the farmers to store the foods in cold winters.The water has…

Q: Why will wrapping a bottle in a wet cloth for an outing often produce a cooler bottle than placing…

A: Wrapping a bottle in a wet cloth for an outing often produces a cooler bottle than placing the…

Q: Why is it safe to remain inside a car during a lightening storm?

A: During a lightning storm, it is safer to sit inside a car rather than standing under a tree. This…

Q: After you measure the dimensions of a plot of land with a steel tape on a hot day, you return and…

A: The metal expands and contracts according to the temperature it subjected to. The metal expands if…

Q: How does perspiration give the body a means of cooling itself?

A: To determine: How the perspiration give the body a means of cooling itslef

Q: Why do we wear woollen clothes in winter?

A: During winter season the human body temperature increases to the environmental temperature and heat…

Q: Cite two reasons why firewalkers don't burn their wetted feet when walking barefoot on red hot…

A: The conductivity of red hot coal is very low. They conduct heat at a very slow rate. When the…

Q: What happens to the temperature of air  when it expands?

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Q: Why does the weather become very cold after a hail storm?

A: Ice absorbs a large amount of Latent heat from the surroundings to melt. There is a lot of heat in…

Q: Why do clouds often form above mountain peaks? (Hint: Consider the updrafts.)

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Q: Why does a piece of watermelon stay cool for a longer time than sandwiches do when both are removed…

A: Given:  watermelon and sandwiches

Q: What happens to the temperature of a pan of water when evaporation exceeds the condensation?

A: Evaporation and condensation can take place simultaneously. Evaporation causes cooling. This is…

Q: The Earth cools off at night much more quickly when theweather is clear than when cloudy. Why?

A: The cooling of Earth happens predominantly by radiation.

Q: Woolen clothes are worn in winter, Why?

A: Woollen clothes are worn in winter, because air is a poor conductor of heat.

Q: If water had a lower specific heat capacity, would ponds be more likely to freeze or less likely to…

A: A lower heat capacity means that less energy must be transferred to result in a temperature change.

Q: On cold, clear nights horses will sleep under the cover of large trees. How does this help them keep…

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Q: Why is sweating an efficient mechanism for cooling off on a hot day?

A: There will be evaporation of water and other liquids present on human’s skin into the air. The…

Q: What is the best material to use to insulate a home?

A: Bulk insulation includes materials such as glass wool, wool, cellulose fiber, polyester and…

Q: Microwaving your burrito is an example of what type of heat transfer?

A: Heat transfer by thermal radiation is due to electromagnetic waves

Q: What will happen if a metal piece is touched with a finger in arctic cold?

A: A metal piece in artic cold will be frozen. When skin is exposed to cold weather conditions or came…

Q: When ice in a pond melts, what effect does this have on the temperature of the neraby air?

A: The nearby air temperature will decrease.

Q: A blanket keeps our body warm in winter, but the same blanket can protect ice from melting, Explain…

A: A blanket keeps our body warm in winter, but the same blanket can protect ice from melting because a…

Q: Why is it important to protect water pipes in the winter so that they don’t freeze?

A: Given:  water pipes

Q: If the winds at the latitude of San Francisco and Washington, D.C., were from the east rather than…

A: If the winds were flowing from east rather than from west, the climate in San Francisco would be…