WONDER #954: How Does a Doorbell Work?

Question 1 of 3

The doorbell is such a marvel because of its what?

1. simplicity
2. sound
3. function
4. technology

Question 2 of 3

Which scientific principle is at the heart of the doorbell’s function?

1. gravity
2. electromagnetism
3. momentum
4. relativity

Question 3 of 3

When you press an electronic doorbell, what kind of circuit is triggered?

1. disintegrated circuit
2. closed circuit
3. circuit breaker
4. integrated circuit

Check your answers online at https://wonderopolis.org/wonder/how-does-a-doorbell-work.