Stationary Waves (Leaving Cert Physics): Quizzes

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Stationary Waves
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What two properties must waves have to form a stationary wave?

Identical frequency & amplitude

What is the amplitude at a node in a stationary wave?

Zero

What is the amplitude at an antinode in a stationary wave?

Maximum

What is the distance between two consecutive nodes?

λ2\frac{\lambda}{2}

What is the distance between two consecutive antinodes?

λ2\frac{\lambda}{2}

What is the distance between a node and the next antinode?

λ4\frac{\lambda}{4}

How does a stationary wave form on a string?

Wave reflects from fixed end & interferes

What type of interference creates nodes in a stationary wave?

Destructive interference

What type of interference creates antinodes in a stationary wave?

Constructive interference

How does the frequency of a stationary wave compare to the travelling waves that formed it?

They are equal

If distance from antinode to nearest node is 0.6 m, what is λ\lambda?

2.4 m

What is another name for a stationary wave?

Standing wave

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