Piezoelectricity

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/piezoelectricity

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. Who discovered Piezoelectricity?1880
2. What is the discoverers?Jacques and Pierre Curie
3. What is the key feature?Linear electromechanical interaction between mechanical stress and electrical polarization
4. How does piezoelectricity work?When you press or stretch a crystal that has no center of symmetry, the positive and negative ions inside shift apart. This creates electric dipoles that add up to produce a net electric charge, and the amount of charge is proportional to how hard you press.
5. Why do piezoelectric crystals need to lack a center of symmetry?Only crystals without a center of symmetry can separate their positive and negative charge centers. This lets the atoms move in a way that creates a net electric dipole when the crystal is stressed.

Electromechanical Coupling: The interaction between electrical and mechanical energy within a material.
Crystal Lattice: The unique, ordered three-dimensional arrangement of atoms or molecules in a crystalline solid.
Transducer: A device that converts one form of energy into another, such as mechanical energy into electrical energy.
Polarization: The separation of positive and negative electric charges within a material.