Question Info

This question is public and is used in 106 tests or worksheets.

Type: Open-Ended
Category: Waves and Sound
Level: Grade 7
Score: 2
Tags: inventor
Author: mrsbateacher
Last Modified: 10 years ago

View all questions by mrsbateacher.

Waves and Sound Question

View this question.

Add this question to a group or test by clicking the appropriate button below.

Grade 7 Waves and Sound

Who developed a carbon filament that improved the quality of light and increased the longevity of Thomas Edison's light bulb?