input: OPTIONS:
- decreases
- increases
- depends
- remains the same Now, answer this question: Q: The number of neutrons and electrons may vary or change in an atom. what happens to the number of protons? A:
A:
output: remains the same

input: OPTIONS:
- shape
- iron content
- liquid content
- volume Now, answer this question: Q: The kinetic energy of a moving object depends on it's mass and it's what? A:
A:
output: volume

input: OPTIONS:
- free energy
- experimental energy
- subsequent energy
- electrical energy Now, answer this question: Q: What do solar cells convert the energy in sunlight into? A:
A:
output:
electrical energy