8.1 Stationary waves

4 of 4 objectives have lessons · 0 studied · 0 secure

Lessons

The principle of superpositionWaves pass through each other and their displacements add. Learn the rule, then use it to predict what happens where two waves meet. 6 min, not started
How a stationary wave formsTwo identical waves travelling in opposite directions superpose to make a pattern that stays put: nodes, antinodes, and no net energy flow. 7 min, not started
Stationary waves in the lab: strings, microwaves and air columnsThree standard experiments that produce stationary waves, what you measure in each, and why the pattern appears. 8 min, not started
Finding the wavelength from nodes and antinodesNode spacing is half a wavelength. Measure it carefully, count intervals rather than points, and the wavelength follows. 7 min, not started

4 objectives

What Cambridge says you should be able to do, in our words. Codes are the topic number plus the objective’s position.

8.1.1

Explain the principle of superposition and use it.

Taught in: The principle of superposition · 6 questions

8.1.2

Show an understanding of experiments demonstrating stationary waves with microwaves, stretched strings and air columns.

End corrections are treated as negligible, and the concept of end corrections is not required.

Taught in: Stationary waves in the lab: strings, microwaves and air columns · 6 questions

8.1.3

Use a graphical method to explain how a stationary wave forms, and identify its nodes and antinodes.

Taught in: How a stationary wave forms · 7 questions

8.1.4

Understand how the positions of the nodes or antinodes of a stationary wave can be used to determine the wavelength.

Taught in: Finding the wavelength from nodes and antinodes · 6 questions