Practice question · Sort into groups
Sort each standing-wave feature into Node or Antinode.
Groups: Node · Antinode
- Fixed end of a string
- Open end of an organ pipe (pressure)
- Point of destructive superposition
- Point of maximum displacement
- Centre of fundamental mode on a fixed string
- Point of zero displacement
Hints
- One kind of point never moves; the other moves the most.
- Fixed ends are forced into one of the two categories.
Show the answer
Node: Point of zero displacement, Fixed end of a string, Point of destructive superposition
Antinode: Point of maximum displacement, Open end of an organ pipe (pressure), Centre of fundamental mode on a fixed string
Why
Nodes are zero-amplitude points; antinodes are maximum-amplitude points in a standing wave.
Practise Superposition, Interference, and Standing Waves
The app has 9 more questions on this lesson, and keeps your place in the course. Physics I is free to start.
More questions on Superposition, Interference, and Standing Waves
- Two identical wave pulses — one upright, one inverted — travel toward each other on a string. At the instant…
- A standing wave has nodes that never move and antinodes that swing hardest. Why does a travelling wave have…
- Order these milestones in the history of wave physics.
- A guitar string 0.65 m long vibrates in its fundamental mode with wave speed 260 m/s (fundamental: λ = 2L).…