HomeVocabularyScienceGrades 5–6 › Acceleration
Science · Grades 5–6

Acceleration

noun

The rate at which velocity changes over time, including speeding up, slowing down, or changing direction.

Example Sentences

"The car's acceleration pushed passengers back in their seats."

"Gravity causes all objects near Earth to have the same acceleration of 9.8 m/s²."

Synonyms & Related Terms

rate of changespeed increase

Quick Check

Which best describes the meaning of acceleration?

Study Tips

To remember acceleration, 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.