A delivery man pushes the button to ring the doorbell. Which of the following forms of energy is not involved in this process?
electrical
sound
mechanical
gravitational
my answer is gravitational
Unit2 lesson 9
1. A
2. B
3. C
4. B
5. D
6. D
7. A
8. B
9. C
10. C
11. D
12. C
13. A