Question

stan dingwaives and anna conda are conducting a study of the effect of varying tension in a wire upon the speed of wave traveling through the wire. which notebook entry accurately identifies the variables and displays the best choice for a plot? choice 1 of 4: dependent variable: speed independent variable: tension graph with tension (n) on y - axis, speed (m/s) on x - axis, points plotted

Explanation:

To determine the correct notebook entry, we analyze the variables and the plot:

Step 1: Identify Variables

• The independent variable is the one manipulated (tension, as it is varied).
• The dependent variable is the one measured (speed, as it depends on tension).

Step 2: Analyze the Plot

In a scatter plot, the independent variable (tension) should be on the \( x \)-axis, and the dependent variable (speed) on the \( y \)-axis. However, in the given plot:

• The \( x \)-axis is labeled "Speed (m/s)" (dependent variable).
• The \( y \)-axis is labeled "Tension (N)" (independent variable).

This is incorrect. A proper plot should have the independent variable (tension) on the \( x \)-axis and the dependent variable (speed) on the \( y \)-axis. However, the variable identification (dependent = speed, independent = tension) is correct. But the plot’s axis labels are reversed.

Step 3: Evaluate the Entry

The notebook entry correctly identifies:

• Dependent variable: Speed (correct, as speed depends on tension).
• Independent variable: Tension (correct, as tension is manipulated).

But the plot’s axis labels are swapped (tension on \( y \)-axis, speed on \( x \)-axis), which is a mistake. However, the variable identification in the table is accurate.

Answer:

The notebook entry accurately identifies the variables (dependent: Speed, independent: Tension), but the plot has reversed axes (tension on \( y \)-axis, speed on \( x \)-axis). If we assume the question asks about variable identification (not the plot’s axis labels), the entry’s variable identification is correct.