Standing Waves Analysis Report

Name:

Date:

📚 Part 1: Knowledge Check & Aim

1. Which statement about standing waves on a string is correct?

Nodes are points of maximum displacement.

Antinodes are points of maximum displacement.

Nodes occur where the string has maximum kinetic energy.

2. For a wave on a string the relationship between frequency (f), wavelength (λ) and wave speed (v) is:

v = f / λ

v = f × λ

v = λ / f

3. Check all factors that directly affect the fundamental frequency of a vibrating string:

Tension in the string

Length of the string

Linear mass density of the string

Ambient temperature (°C)

4. Write a concise aim and hypothesis for an experiment comparing standing waves in a string and in an open pipe (Year 11 NESA):

✏️ Part 2: Practical Report (Structure your full report here)

5. Apparatus and method (briefly list key apparatus, measurement technique and one safety consideration):

6. Diagram: Sketch the experimental setup(s). Label nodes and antinodes for one mode on the string and one mode in an open pipe.

7. Data & calculations: Record the key measured values (lengths, frequencies, masses, tensions) and show calculations to determine wave speed(s) and wavelength(s). Include an uncertainty estimate for one calculated value.

8. Analysis & graph: Describe what you would plot to test the theoretical relationship (for example, f vs n or f vs 1/λ). On the space below, sketch the expected trend and briefly interpret how you would assess agreement with theory.

9. Conclusion and evaluation: State a concise conclusion relating results to your hypothesis, list two major sources of experimental error, and one realistic improvement.