Analyze the data to identify the mathematical relationship between the amplitude and energy of a mechanical wave.

If mechanical wave A has an amplitude of 1 cm and mechanical wave B has an amplitude of 2 cm, what will be the relationship between the energy carried by the two waves?

| Amplitude | Energy |
|-----------|---------|
| 1 unit | 2 units |
| 2 units | 8 units |
| 3 units | 18 units|
| 4 units | 32 units|
| 5 units | 50 units|



Answer :

To analyze the given data and identify the relationship between amplitude and energy, let's systematically break it down:

### Step-by-Step Analysis

1. List the Given Data Points
The table provided gives us the energy associated with different amplitudes:
[tex]\[ \begin{array}{|c|c|} \hline \text{Amplitude} & \text{Energy} \\ \hline 1 \text{ unit} & 2 \text{ units} \\ \hline 2 \text{ units} & 8 \text{ units} \\ \hline 3 \text{ units} & 18 \text{ units} \\ \hline 4 \text{ units} & 32 \text{ units} \\ \hline 5 \text{ units} & 50 \text{ units} \\ \hline \end{array} \][/tex]

2. Identify Specific Amplitudes of Interest
We're particularly interested in analyzing the amplitudes of 1 unit and 2 units:
- Mechanical wave A has an amplitude of 1 unit.
- Mechanical wave B has an amplitude of 2 units.

3. Determine Corresponding Energy Values
From the table, we can extract the energy values directly for these amplitudes:
- The energy for amplitude 1 unit (wave A) is 2 units.
- The energy for amplitude 2 units (wave B) is 8 units.

4. Find the Relationship Between the Energies
To determine the relationship between the energies carried by the waves, we calculate the ratio of the energy of wave B to the energy of wave A. Specifically, we use the energy values found:
- Energy of wave A [tex]\( E_A = 2 \)[/tex] units.
- Energy of wave B [tex]\( E_B = 8 \)[/tex] units.

The relationship is:
[tex]\[ \text{Energy Relationship} = \frac{E_B}{E_A} = \frac{8 \text{ units}}{2 \text{ units}} = 4.0 \][/tex]

### Conclusion
The relationship between the energy carried by mechanical wave A (amplitude 1 unit) and mechanical wave B (amplitude 2 units) is that wave B carries 4 times the energy carried by wave A. This indicates a quadratic relationship between amplitude and energy, which is a common physical property: energy is often proportional to the square of the amplitude. Thus, when the amplitude doubles, the energy becomes four times greater.

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