HomeVocabularyScienceGrades 7–8 › Quantum
Science · Grades 7–8

Quantum

noun

The smallest discrete unit of a physical quantity, especially energy.

Example Sentences

"Einstein proposed that light is made up of quanta called photons."

"Quantum mechanics describes the behavior of particles at the atomic level."

Synonyms & Related Terms

discrete unitenergy packet

Quick Check

Which best describes the meaning of quantum?

Study Tips

To remember quantum, try writing it in a sentence of your own. Connect it to something you already know about science.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.