Question

What would be the effect of replacing the steel ball with wooden ball, lead ball, and ping pong ball of the same size *neglecting air resistance*

Answer 1

Explanation:

If they are all the same mass, and the center of mass is in the same location, the pendulum would have close to the same period

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Answer 2

Answer:But for a steel or lead ball to have the same mass as a ping-pong ball, the steel or lead ball would have to be tiny compared to the ping-pong ball. The wooden ball would be somewhere in between. That means there will be a difference in both buoyancy and air resistance as each pendulum swung through the air.

Explanation: