How did new sources of energy and technology transform production and society after 1750?
Topic 5.5 Technology of the Industrial Age: the new technologies and energy sources of the first and second industrial revolutions and how they changed production, transport, and communication.
A focused answer to AP World History Topic 5.5, explaining the technologies of the first and second industrial revolutions: the steam engine and coal, then steel, electricity, the internal combustion engine, and chemicals, and how they transformed production, transport, and communication.
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What this topic is asking
Topic 5.5 covers the technology and energy of the industrial age. It asks you to explain the key inventions and energy sources of the first industrial revolution (steam and coal) and the second industrial revolution (steel, electricity, the internal combustion engine, and chemicals), and how these technologies transformed production, transport, and communication around the world.
The two industrial revolutions
The first industrial revolution: steam and coal
The breakthrough was a new source of power.
The second industrial revolution: steel, electricity, and oil
After about 1870 a second wave of technology emerged.
- Steel. The Bessemer process made steel cheap and abundant, enabling rails, bridges, ships, and skyscrapers.
- Electricity. Electric lighting, motors, and power transformed factories and cities and made night work and rapid communication possible.
- Internal combustion engine. Burning petroleum, it powered automobiles and later aircraft, creating new industries and a new demand for oil.
- Chemicals. New chemical industries produced dyes, fertilizers, and explosives, boosting agriculture and industry alike.
Transport and communication shrink the world
Technology bound distant places together.
- Transport. Railways and steamships, plus the opening of the Suez Canal (1869), slashed travel times and freight costs, knitting a global economy.
- Communication. The telegraph sent messages along wires and undersea cables almost instantly, and the telephone followed; for the first time, information could outrun the fastest ship.
- Global integration. These technologies made it possible to run empires, markets, and migrations across the planet, themes that run through Unit 6.
Try this
Q1. Name the process that made cheap steel widely available in the second industrial revolution. [Recall]
- Cue. The Bessemer process.
Q2. Explain one way industrial-age technology shrank distance in this period. [Short explanation]
- Cue. The steam locomotive and steamship moved goods and people far faster and cheaper than animal or wind power, while the telegraph and undersea cables sent messages across oceans almost instantly.
Exam-style practice questions
Practice questions written in the style of College Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AP 2018 (style)3 marksBriefly identify ONE energy source of the first industrial revolution. Briefly explain ONE technology of the second industrial revolution. Briefly explain ONE way industrial technology changed transport or communication.Show worked answer →
A Short Answer Question (SAQ), 3 points, one per bullet.
A. Identify: coal, burned to power steam engines, was the key energy source of the first industrial revolution.
B. Second industrial revolution technology: electricity powered lighting, motors, and later factories, while the Bessemer process made cheap steel for buildings and rails.
C. Transport or communication: the steam locomotive and steamship moved goods and people faster and cheaper, while the telegraph allowed near-instant long-distance messaging.
Each bullet must name a concrete technology.
AP 2021 (style)6 marksEvaluate the most significant technological change of the industrial age in the period c. 1750 to c. 1900.Show worked answer →
A Long Essay Question (LEQ), scored on the 6-point causation rubric.
Thesis (1): "The most significant technological change was the harnessing of new energy - coal-fired steam and then electricity - because it freed production from muscle, wind, and water and powered everything else, though steel and the telegraph were also transformative."
Contextualization (1): situate the technologies in the spread of industrial production after 1750.
Evidence (2): the steam engine and coal; railways and steamships; the Bessemer process and steel; electricity and the internal combustion engine; the telegraph.
Analysis (2): explain HOW new energy multiplied output and shrank distance, then add complexity by weighing energy against communications technology like the telegraph that bound the globe together.
Related dot points
- Topic 5.3 Industrial Revolution Begins: the conditions in Western Europe, especially Britain, that allowed industrialization to begin and the early factory system to develop.
A focused answer to AP World History Topic 5.3, explaining why the Industrial Revolution began in Britain: its coal and iron, agricultural revolution, capital, colonies and markets, political stability, and access to resources, and how the factory system replaced the cottage economy.
- Topic 5.4 Industrialization Spreads in the Period from 1750 to 1900: the spread of industrialization from Britain to continental Europe, the United States, Russia, and Japan, and the deindustrialization of some regions.
A focused answer to AP World History Topic 5.4, explaining how industrialization spread from Britain to continental Europe, the United States, Russia, and Japan, the role of states in catching up, and how Britain's competition deindustrialized regions like India.
- Topic 5.7 Economic Developments and Innovations in the Industrial Age: the new financial and business institutions, including corporations, banks, and stock markets, and the rise of transnational businesses and free-market capitalism.
A focused answer to AP World History Topic 5.7, explaining the economic innovations of the industrial age: the corporation and limited liability, stock markets and banks, transnational businesses like the HSBC and Unilever, and the spread of free-market capitalism.
- Topic 6.2 State Expansion from 1750 to 1900: the methods and patterns of imperial expansion, including the Scramble for Africa, the British Raj, and settler colonialism, enabled by industrial technology.
A focused answer to AP World History Topic 6.2, explaining how industrial states expanded their empires: the Scramble for Africa and the Berlin Conference, the British Raj in India, settler colonialism, and the role of industrial technology and weapons.
- Topic 9.1 Advances in Technology and Exchange: the technological advances in communication, transportation, energy, and medicine that accelerated globalization after 1900.
A focused answer to AP World History Topic 9.1, explaining the technological advances that accelerated globalization: communication from the radio to the internet, transportation from air travel to container shipping, new energy sources, and medical and agricultural breakthroughs.
Sources & how we know this
- AP World History: Modern Course and Exam Description — College Board (2020)