Equal masses transfer energy completely while mismatched masses reflect some
Evidence
If we make a line of coins, each coin becomes an agent of transfer of energy from left to right, if the first coin was traveling in that direction. A coin that is much heavier or lighter than its neighbors will impede the transfer of energy. Two nickels are impedance matched; the stationary nickel gives as good as it gets, stopping the moving nickel dead. A penny and a nickel are impedance mismatched; a penny does not exert as much force back on the colliding nickel as another nickel would and does not decelerate the nickel all the way to zero speed. The nickel continues on its way, albeit more slowly. Only in the case of equal masses does the energy get completely transferred from one coin to the other — Eric J. Heller, Why You Hear What You Hear- An…, 60
Categorization
Category: Causal Relationships
Related
- Impedance mismatch causes partial reflection of energy between unequal masses. (similarity 0.92)
- A single impedance mismatch in a chain splits energy into reflected and transmitted parts. (similarity 0.85)
- An intermediate-mass coin between mismatched pairs boosts energy transmission (similarity 0.80)
Broader Connections
- Perfect impedance matching eliminates reflection while mismatch causes it
#corroborates(0.92) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 237 - An intermediate-mass coin between mismatched pairs boosts energy transmission
#expands(0.80) — Eric J. Heller, Why You Hear What You Hear- An…, 70