| Wave Effect | Sound Wave |
|---|---|
|
The light wave can be reflected, refracted and diffracted.
Mention three characteristics of light wave.
|
false
Sound waves are transverse wave (true/false)
|
|
refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.
Define refraction
|
using the soft materials like curtain, carpet, etc to absorb the energy from the sound wave.
How do we reduce echoes?
|
|
A spoon in water, Mirage, prism and looming
Mention an example of refraction for light wave.
|
false
Sound wave can be refracted but can't be reflected (true/false)
|
|
Diffraction is defined as the bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture.
Define diffraction
|
false
Sound waves travel the fastest in air (true/false)
|
|
CD reflecting rainbow colours, water wave pass on a small slit.
Mention an example of diffraction
|
Temperature will affect the density of the medium. The closest the particles of the medium the fastest the sound waves move.
Explain how the temperature affects the speed of sound.
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