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When heat is introduced at one point of a metal,the particles of the metal starts moving vigorously as a result of the heat. As they move they spread the heat to the other particles of the metal. The whole metal heats up and that's how conduction of heat occurs.
Sally the guru answered the question on October 28, 2017 at 09:06
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Date posted: October 27, 2017. Answers (1)
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State one condition of equilibrium.(Solved)
For a body to be at equilibrium under the action of parallel forces two conditions must be satisfied.
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (2)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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A student stands at a distance 400m from a wall and claps two pieces of wood. After the first clap the student claps whenever an echo is heard from the wall. Another student starts a stopwatch at the first clap and stops it after the twentieth clap. The stopwatch records a time of 50 seconds. Find the speed of sound.
Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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A negatively charged rod is brought rear the cap of a leaf electroscope. The cap is then earthed momentarily by touching with the finger. Finally the rod is withdrawn. The electroscope is found to be positively charged. Explain how this is acquired
Date posted: October 27, 2017. Answers (1)
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State any one form of energy
b) An electric crane lifts a load of 2000kg through a vertical distance of 3.0m in 6 seconds Determine:
i) The work done
ii) The power developed by the crane
The efficiency of the crane if it is operated by an electric motor rated 12.5kw.
Date posted: October 27, 2017. Answers (1)
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When ice is heated, the temperature remains constant until all ice is melted. Explain this observation.
Date posted: October 27, 2017. Answers (1)
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Using the kinetic theory of gases, explain why air inside a tyre exerts pressure on the walls of the tyre
Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
- A box made of glass sides contained a mixture of smoke and air. Bright light was shown on it and viewed through a microscope....(Solved)
A box made of glass sides contained a mixture of smoke and air. Bright light was shown on it and viewed through a microscope. It is observed that the small bright specks are seen to be moving randomly.
a. What are the bright specks?
b. What cause their movement?
c. If the mixture of smoke and air was cooled, what change or changes would be there in the motion of the specks?
Date posted: October 26, 2017. Answers (1)
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The smell of rotten eggs broken in a room spread throughout the room. Explain.
Date posted: October 26, 2017. Answers (1)