Here is a goal: To test if household batteries are still good,

How would you accomplish this goal?

Choose your answer from:
[a]. drop them from about six inches from the ground. If they bounce once and fall over, they're still good. If they keep bouncing, they're dead.
[b]. drop them from about six feet from the ground. If they bounce and fall over, they're already bad. If they keep bouncing around, they're still good.
[a].