science
Grade6
Easy
Question
Sound with 25000 HHz frequency is called _______.
- Ultrasound
- Infrasound
- Audible sound
- None
Hint:
Ultrasound ave frequencies 20,000Hz and above
The correct answer is: Ultrasound
- Sounds that have frequencies 20,000Hz and above are called Ultrasound.
- It is sound waves with frequencies higher than the upper audible limit of human hearing.
Related Questions to study
science
Sound travels slower in _______.
Sound travels slower in _______.
scienceGrade6
science
The speed of sound in liquid is _________.
The speed of sound in liquid is _________.
scienceGrade6
science
The units of frequency are __________.
The units of frequency are __________.
scienceGrade6
science
Ultrasounds have large frequency.
Ultrasounds have large frequency.
scienceGrade6
science
If a body is not vibrating, then it is not producing _______.
If a body is not vibrating, then it is not producing _______.
scienceGrade6
science
Infrasound has a great frequency.
Infrasound has a great frequency.
scienceGrade6
science
Human ear cannot hear __________.
Human ear cannot hear __________.
scienceGrade6
science
Sound is measured in _______.
Sound is measured in _______.
scienceGrade6
science
Human ear can hear __________.
Human ear can hear __________.
scienceGrade6
science
If the amplitude decreases, they are called ________ vibrations.
If the amplitude decreases, they are called ________ vibrations.
scienceGrade6
science
Vibrating bodies make _______________.
Vibrating bodies make _______________.
scienceGrade6
science
Sound is the form of __________________.
Sound is the form of __________________.
scienceGrade6
science
All eclipse occur on same day.
All eclipse occur on same day.
scienceGrade6
science
Penumbra is the darkest region of a shadow.
Penumbra is the darkest region of a shadow.
scienceGrade6
science
Sun shadow forms _________ eclipse.
Sun shadow forms _________ eclipse.
scienceGrade6
