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Energy Unit

IB CurriculumPosted by Steven Daly Fri, May 09, 2014 18:38:07

Please answer the following questions related to the Energy Unit of Work. Each question must be answered by a specific student. The name of each student is next to the question to be answered.

Lee-roy, how did the development of electricity lead to a technological revolution and an increase in the volume of the production of goods?

Daria, what was the impact on the production of goods with the invention of motors?

Sally, what was the effect on society with the wide distribution of electricity?

Anuschka how did the design of portable batteries effect the nature of energy usage?

Deadline - Tuesday 13 May. Once all the questions have been answered then you must all review the work as you will have a short test on Thursday 15 May.

Many thanks,

Mr Daly




Fill in only if you are not real





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Posted by Sally Wed, May 14, 2014 23:02:53

Extra : The effect on society with the wide distribution of electricity is that people used electricity for lighting and then demand came as households introduced electric heating and cooking. In the industry factories started to use electric motors to drive machine tools and electric tramways were introduced.

Posted by Daria Wed, May 14, 2014 19:19:34

what was the impact on the production of goods with the invention of motors?

Before electric motors were invented, line shafting was used to distribute power throughout the factory or mill. In an early mill all the power to operate the machinery would come from a single steam engine or water wheel. Power then was distributed from this mover by a system of raw hide belts, ropes, pulleys and line shafts. This would supply power to each individual machine.
With the invention of electric motors, the production became faster and more efficient. It now used different sources to provide energy, it was more powerful and supplied each machinery with a bigger capacity. So more work could be done.
Also the invention of the motor lead to the creation of the new more advanced machinery that resulted in complicity and quality of goods produced at that time.

Posted by Lee-Roy Steiner Wed, May 14, 2014 17:55:44

How did the development of electricity lead to a technological revolution and an increase in the volume of the production of goods?

In the late 19th century the second industrial revolution, as known as the technological revolution, emerged and was mainly dominated by electricity and chemicals. Michael faraday's discovery of electromagnetic induction allowed him to invent the dynamo which allowed coal or fast flowing water to be converted into electricity. Furthermore, because of this the possibility of telecommunications became a reality.

Through this, the production of goods increased because due to electrically powered machinery, products could be produced cheeper and faster than ever before. This also carved the beginning of the assembly-line.

Posted by Sally Wed, May 14, 2014 16:57:28

what was the effect on society with the wide distribution of electricity?

Electricity distribution is the final stage in the delivery of electricity to end users. A distribution system's network carries electricity from the transmission system and delivers it to consumers. And it works by power travels from the power plant to your house through a system called the power distribution grid. Power grid distribution lines can be above or under ground.

The effect on society with the wide distribution of electricity is that individuals became dependent on the new source of energy also, new electrical technologies. Because the individuals can easily access electricity in their houses they were able to use portable electrical and electronic product. It has positive effects on individuals because the electricity is transmitted to homes and businesses, which is a benefit for them to run the electrical product.

Posted by Anuschka Pinto Tue, May 13, 2014 15:36:28

How did the design of portable batteries effect the nature of energy usage?
The nature of energy usage was very manual before the portable batteries were invented. Manual in the sense that, if once the energy was finished and fully used you had to throw it away and buy a new battery, or you had to be stationary in order to charge it again (once the rechargeable ones were invented). All these things weren't very practical.

Once the newer designs of portable batteries were invented and they didn't have the need of recharging, they were lasting batteries and specially if they weren't under usage the energy would be conserved even more they affected the nature of energy usage because a person no longer had to constantly recharge their batteries like they originally did, nor always have to buy a new battery once the energy had finished. Or they also didn't have to be stationary at a place until the battery was fully charged once again.