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WorksheetsSound and Light
Total questions: 23
Worksheet time: 13mins
What are vibrational frequencies that range beyond 20,000 Hz?
Ultrasonic frequencies
Infrasonic frequencies
What part of the ear collects sound waves and focuses them into the ear canal?
(a)
What type of waves are sound waves?
Electromagnetic waves
Mechanical waves
Vibrations of the medium create a series of crest and trough which results to transverse waves
True
False
Sound is the slowest in matter that is closely packed like solid and fastest in gas.
True
False
High temperature brings much faster sound. Increased humidity, on the other hand makes sound travel slower.
True
False
As pressure is increased, speed is also increased.
True
False
Solid tend to be highly elastic than gases and thus sound travel fastest in solids.
True
False
Humid air is more massive and is more inert than dry air. This condition brings lesser molecular interactions and eventually slower sound.
True
False
The higher the frequency the higher the pitch of the sound produced.
True
False
Frequencies beyond the upper limit of audible sound for humans is called infrasonic.
True
False
High amplitude waves are intense and are sensed as loud sound.
True
False
A special sound that forms patterns and are appealing to our sense of hearing.
(a)
Speed of sound is dependent on factors like temperature, humidity, and air pressure (atmospheric pressure).
True
False
What is the unit of intensity level of sound?
(a)
White and Black are considered as colors of light.
True
False
Light accordingly has a wave-like nature and particle-like nature.
True
False
Light is a mechanical wave.
True
False
Light travels in a straight line path in a particular medium.
True
False
Blue light is being refracted more than the other color lights and thus it appears to be bent.
True
False
What does Green and Red make?
Magenta
Cyan
Yellow
What does Magenta and Yellow make?
Red
Blue
Green
Objects appear to have colors due to reflection and transmission of light.
True
False
