3% W Activity 3: Electric Potential Demonstration Showing potential energy differences for the earth's gravitational eld can be shown visually. Showing electrical potential (energy) difference is harder to visually show and understand. Use the gravity analogy to establish the electIical potential difference concept. {a} Drop an object (ex: baseball} from rest from 20 cm above a pie tin on spacers. Observe. {b} Reposition the pie tin and spacers to a different location and again drop the ball from 20 cm. lIlllbserve. (c) Drop the same ball onto pie tin 2. but from 100 111 above pie tin 2 and observe. MI lGuide Questions: 1. Compare the noise created by the object dropped from 2D cm above and the created after the pie tin repositioned. 2. Compare the noise created by the object dropped from 21] cm above the pie tin and the object dropped from 100 cm above the pie tin. 3. What is die GPE difference LIEU] of the object dropped at two different distances from the pie tin? 4. 1What does the sound created by te object in situation number 1 indicate