WorksheetsDIFFRACTION
Total questions: 35
Worksheet time: 17mins
what is diffraction
is a soild liquid gass
is a beam of light that is spread out and passes through an object
a beam of light
A wave of constant wavelength diffracts as it passes through an opening in a barrier. As the size of the opening is increased, the diffraction effects
decrease
increase
remain the same
What happens to the frequency of a wave as it passes through a gap？
Increases
Decreases
No change
None of above
What would you call this?
Reflection
Diffraction
Refraction
Friction
What would you call this?
Refraction
Diffraction
Bends
Reflection
witch picture is diffraction
Which of the following is the best example of diffraction?
Your voice echoing back when you shout into a canyon
A straw appearing to bend when you place it in a glass of water
A prism breaking a beam of light into its component colors
The music on your stereo getting louder when you turn up the volume
Does the wave speed change after diffraction？Explain it.
Yes. It slows down.
Yes. It speeds up.
No. There is nothing change about the medium.
No. Because the frequency doesn't change.
how does diffraction work
it goes through water and air
is a beam of light stopping at a wall
it bounces off of light
is the bending of light as it passes around the edge of an object
A wave of constant wavelength diffracts as it passes through an opening in a barrier. As the size of the opening is increased, the diffraction effects
decrease
increase
remain the same
Diagram shows a wave barrier.
What is the function of the gap between the wave barrier?
To reduce wavelength
To reduce wave velocity
To reduce wave amplitude
To reduce wave frequency
Name the wave phenomenon above
(a)
Which diffraction pattern is correct when waves pass through an obstacle?
In which of the following situations will diffraction be more obvious?
Diagram shows diffraction of wave.
Which quantity decreases when the water waves diffract?
Speed
Period
Amplitude
Wavelength
Diagram shows the diffraction pattern produced on the screen by three different monochromatic light sources X, Y and Z.
What are the colour of X, Y and Z?
X: blue
Y : green
Z : red
X : blue
Y : red
Z : green
X : red
Y : green
Z : blue
X : red
Y : blue
Z : green
Diagram shows light passing through a razor blade.
What is the wave phenomenon that occurs?
Reflection
Refraction
Diffraction
Interference
Name this wave phenomenon
(a)
Name this wave phenomenon
(a)
Diffraction of waves is the spreading of waves when the waves propagates through a slit or side of barrier
True
False
After diffraction, the amplitude of wave decreased because the wave
Diverge and spread to wider region
Converge and focused to small region
For a better diffraction, wavelength of wave must be.......than the size of slit
Longer
Shorter
Same
Diffraction of waves is the spreading of waves when the waves propagates through a slit or side of barrier
True
False
Which diagram best represents the shape and direction of a series of wave fronts after they have passed through a small opening in a barrier?
Radio waves diffract around buildings more than light waves do because, compared to light waves, radio waves
move faster
move slower
have a higher frequency
have a longer wavelength
This diagram shows a series of straight wave fronts produced in a shallow tank of water approaching a small opening in a barrier.
Choose correct statement, based on the picture.
spreading of waves is less significant when waves pass trough wide slit.
spreading of waves is more significant when waves pass trough wide slit.
spreading of waves is more significant when the wavelength is higher
Effects of diffraction . Choose INCORRECT statement.
Wavelength : No Change
Frequency : Change
Amplitude : Increase
Which statement explain about the picture.
waves pass trough slit.
Waves spread around corners of building.
the diffracted waves has low frequency
Which statement related to the picture.
Diffraction of sound waves trough a single slit.
Diffraction of light waves trough a single slit.
Diffraction of sound waves trough a barrier.
Which statement suitable to the picture.
Diffraction of light waves pass trough the pin hole
Diffraction of light waves trough barrier
What is the benefit of having embankment near the seashore?
more fish can be caught.
low amplitude of waves, which produce low energy.
high amplitude, good for surfing activity
