La máquina de vapor

The steam engine, a pivotal technological advancement of the last 300 years, revolutionized transportation and industry, marking the start of the industrial revolution. It consists of a boiler and a motor, converting steam's thermal energy into mechanical work. Its efficiency made it popular until the mid-20th century when diesel engines took over. However, steam power remains crucial today, with 80% of electricity generated by steam turbines.

What was one of the major impacts of the steam engine during the industrial revolution?

• It was used to generate solar energy.

• It powered boats and trains.

• It led to the invention of the airplane.

• It replaced all manual labor.

What are the two main components of a steam engine?

• A generator and a turbine

• A boiler and a motor

• A condenser and a pump

• A reactor and a compressor

How does the steam engine convert energy?

• It uses wind power to generate electricity.

• It converts solar energy into kinetic energy.

• It transforms thermal energy into mechanical work.

• It uses chemical reactions to produce electricity.

Why did the popularity of steam engines decline in the mid-20th century?

• They were replaced by electric engines.

• They were replaced by diesel-powered engines.

• They were banned due to environmental concerns.

• They became too expensive to operate.

What percentage of electrical energy is still generated by steam turbines today?

• 50%

• 80%

• 90%

• 60%