Locomotive

High school (ages 12+)
Transportation

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/locomotive

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the pioneering steam locomotive?Richard Trevithick's 1804 locomotive
2. What is the key technological shifts?Transition from steam to diesel-electric and fully electric traction systems
3. How did locomotives start?Locomotives began with steam engines like Trevithick’s 1804 Pen‑y‑darren, which proved that steam could move a train. Later models such as the Rocket improved speed and power.
4. Why did people switch from steam to diesel and electric?Steam engines used a lot of water, needed frequent repairs, and made smoke. Diesel and electric engines are cleaner, use less water, and need less maintenance.

Thermodynamic Cycle: A series of processes involving heat and work, fundamental to steam engine operation.
Diesel-Electric Traction: A system where a diesel engine generates electricity to power electric motors driving the wheels.
Regenerative Braking: A braking system that converts kinetic energy back into electrical energy, often recharging batteries or feeding the grid.