Physics
Grade-8
Easy
Question
Light waves are ______ waves.
- Transverse
- Longitudinal
- Mechanical
- Both a and c
Hint:
Light and other types of electromagnetic radiation are transverse waves.
The correct answer is: Transverse
- Light is a transverse wave.
- A transverse wave is a wave in which particles move perpendicular to the direction of the wave propagation.
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When a longitudinal wave propagates through a medium in a forward direction, the particles of the medium move _____.
When a longitudinal wave propagates through a medium in a forward direction, the particles of the medium move _____.
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Sound waves are ______ waves.
Sound waves are ______ waves.
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The loudness of a sound is given by its _____.
The loudness of a sound is given by its _____.
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A louder sound is audible even if the source of sound is far away. This is because ____.
A louder sound is audible even if the source of sound is far away. This is because ____.
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The picture below shows sound waves in different colors. Pick the color of the sound wave which is of the highest frequency.
The picture below shows sound waves in different colors. Pick the color of the sound wave which is of the highest frequency.
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Which of the following sound waves has the highest loudness and the highest pitch?
Which of the following sound waves has the highest loudness and the highest pitch?
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The picture below shows three sound waveforms. They differ in ____.
The picture below shows three sound waveforms. They differ in ____.
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Which of the following activities would produce the loudest sound?
Which of the following activities would produce the loudest sound?
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Which of the following has the lowest frequency and highest amplitude?
Which of the following has the lowest frequency and highest amplitude?
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Which of the following sounds shows the highest pitch?
Which of the following sounds shows the highest pitch?
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Given below are the sound waveforms of the voices of a boy and a girl. The pitch of the boy’s voice is ____ the pitch of the girl’s voice.
Given below are the sound waveforms of the voices of a boy and a girl. The pitch of the boy’s voice is ____ the pitch of the girl’s voice.
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What does the length of the red line represent in the picture of the sound wave shown below?
What does the length of the red line represent in the picture of the sound wave shown below?
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Which of the following is not a characteristic of sound?
Which of the following is not a characteristic of sound?
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The loudness of a sound depends on the amount of ____ to make the sound producing object vibrate.
The loudness of a sound depends on the amount of ____ to make the sound producing object vibrate.
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