11) Stationary and Progressive Waves Flashcards
1
Q
When a steel string is plucked at the centre, a stationary wave formed. Explain why.
A
- Progressive waves travel from centre to ends and reflect.
- Two progressive waves travel in opposite directions along the string.
- Waves have the same wavelength.
- Results in the superposition of the two waves.
2
Q
Define node.
A
A point of minimum or no disturbance.
3
Q
Define antinode.
A
A point of maximum disturbance.
4
Q
Explain how nodes form.
A
Two waves always destructively interfere.
5
Q
Explain how antinodes form.
A
Two waves constructively interfere occurs.
6
Q
Is energy transferred along in a standing wave?
A
No.
