Compound lever

High school (ages 12+)
Science & Technology

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/compound-lever

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 mechanical principle?Sequential amplification of input force through interconnected levers
2. What is the design parameters?Fulcrum position, lever arm lengths, and number of stages determine mechanical advantage
3. How does a compound lever make a small force bigger?Each lever in the chain multiplies the force. If the first lever gives a factor of 2 and the second gives a factor of 3, the total boost is 2 × 3 = 6, so a little push can move a lot of weight.
4. Where did people first use compound levers?Ancient builders probably used them to lift huge stones and build big structures, even though we don't know exactly when they started.

Fulcrum: The fixed point on which a lever pivots or rotates.
Mechanical Advantage: The ratio of output force to input force, indicating how much a machine multiplies force.
Series Arrangement: Components connected one after another, where the output of one feeds into the next.