9 questions
The diagram represent plane wavelength of a water wave about to strike a solid barrier.
Which diagram shows the position of the wavefront after reflection at the barrier.
Plane water waves travel from a shallow region into a deeper region. They travel more quickly in the deeper water.Which diagram shows the pattern in the deeper water?
When water waves pass through a gap they diffract.
The diagram show wavefront approaching a narrow gap
In which diagram will be the diffraction be least.
Different waves hit barriers with different sized gaps.
The waves will diffract.
In which diagram does the greatest spreading occur?
A large hill blocks the direct path between a transmitter of radio waves and a receiver, as shown.
The receiver picks up the signal from the transmitter even though the radio waves do not travel through the hill. Which is correct.
A possible way for this to happen is diffraction round the hill and a stronger signal is received using longer wavelengths.
A possible way for this to happen is diffraction round the hill and a stronger signal is received using shorter wavelengths.
A possible way for this to happen is refraction round the hill and a stronger signal is received using longer wavelengths.
A possible way for this to happen is refraction round the hill and a stronger signal is received using shorter wavelengths.
The frequency of wave is doubled. The speed of the wave does not change. What happen to the wavelength of the wave?
It becomes four times as large
It does not change
It double
It halves
The diagram shows a wave before its reflects from a barrier.
Which labelled section of the diagram represent a wavefront?
A
B
C
D
Figure 9 shows a cross-section through the water wave as it moves into a shallow region and then out of the shallow region.
State what, if anything, in Fig 9 shows happening to
i) the amplitude of the wave as it moves into the shallow region................................
ii) the wavelength of the wave as it moves into the shallow region.................