Questions
Read Waves and pulses as far as the wave equation section.
1 A wave is shown moving to the right.
a Mark the amplitude and the wavelength on the diagram.
As the wave moves to the right, the larger ball moves up and down the vertical line
b Is the wave transverse or longitudinal?
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2 Boundaries are classified as open or closed.
a Give one example of a closed boundary.
....................................................................................................................b Give one example of an open boundary.
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3 A pulse is shown moving to the right. The pulse is about to encounter a closed boundary.
a Sketch the pulse after it has reflected from the closed boundary.
b How would the reflection differ if the boundary were open?
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4 The wave shown is moving to the right. The wave is about to encounter a closed boundary.
a Sketch the wave after it has reflected from the closed boundary.
b How would the reflection differ if the boundary were open?
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5 The period of a wave generator is T seconds.a Write down the frequency of the wave generator in Hertz.
frequency = ........... Hz
b Which statement is correct?
i The wave equation, v = fl applies to all waves.
ii The wave equation, v = fl applies only to transverse waves.
iii The wave equation, v = fl applies sound and light waves, but not to a tsunami.
