Crane (machine)

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/crane-machine

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 core principle?Cranes utilize leverage and counterbalancing to lift loads far exceeding human capacity
2. What is the key components?Boom (lever arm), hoist (lifting mechanism), and counterweight (stability)
3. What is a crane?A crane is a big machine that lifts very heavy things, like a superhero for building. It uses a long arm called a boom and a hook to pick up loads.
4. How does a crane lift heavy objects?The crane uses a winch and a wire rope to pull up the load. The boom acts like a lever, and the counterweight at the back keeps the crane steady.

Leverage: The mechanical advantage gained by using a lever to multiply force, crucial in crane operation.
Moment: The turning effect of a force, calculated as force multiplied by distance from a pivot point, essential for stability analysis.
Hydraulic System: A system that uses pressurized fluid to generate force and motion, common in modern crane controls.