WONDER #1322: How Does a Smoke Detector Work?
Question 1 of 3
Whose invention led to the development of ionization chamber smoke detectors?
- Ernst Meili
- Albert Einstein
- Benjamin Franklin
- Marie Curie
Question 2 of 3
Photoelectric smoke detectors use light beams or low-powered what to detect smoke?
- electrical currents
- radioactive materials
Question 3 of 3
The ionization chamber of most ionization smoke detectors contain which radioactive element?
Check your answers online at https://www.wonderopolis.org/wonder/how-does-a-smoke-detector-work.