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 _______.
- Solids
- Liquids
- Gases
- None
Sound travels slower in _______.
scienceGrade6
- Solids
- Liquids
- Gases
- None
science
The speed of sound in liquid is _________.
- 1500
- 1290
- 1300
- 1450
The speed of sound in liquid is _________.
scienceGrade6
- 1500
- 1290
- 1300
- 1450
science
The units of frequency are __________.
- Meter
- Kilos
- Hertz
- Pascal
The units of frequency are __________.
scienceGrade6
- Meter
- Kilos
- Hertz
- Pascal
science
Ultrasounds have large frequency.
- True
- False
Ultrasounds have large frequency.
scienceGrade6
- True
- False
science
If a body is not vibrating, then it is not producing _______.
- Force
- Pressure
- Gravity
- Sound
If a body is not vibrating, then it is not producing _______.
scienceGrade6
- Force
- Pressure
- Gravity
- Sound
science
Infrasound has a great frequency.
- True
- False
Infrasound has a great frequency.
scienceGrade6
- True
- False
science
Human ear cannot hear __________.
- Ultrasound
- Infrasound
- Audible sound
- Both 1 & 2
Human ear cannot hear __________.
scienceGrade6
- Ultrasound
- Infrasound
- Audible sound
- Both 1 & 2
science
Sound is measured in _______.
- Newton
- Pascal
- Decibel
- Meter
Sound is measured in _______.
scienceGrade6
- Newton
- Pascal
- Decibel
- Meter
science
Human ear can hear __________.
- Ultrasound
- Infrasound
- Audible sound
- None
Human ear can hear __________.
scienceGrade6
- Ultrasound
- Infrasound
- Audible sound
- None
science
If the amplitude decreases, they are called ________ vibrations.
- Increase
- Damped
- Ramped
- Shine
If the amplitude decreases, they are called ________ vibrations.
scienceGrade6
- Increase
- Damped
- Ramped
- Shine
science
Vibrating bodies make _______________.
- Force
- Pressure
- Light
- Sound
Vibrating bodies make _______________.
scienceGrade6
- Force
- Pressure
- Light
- Sound
science
Sound is the form of __________________.
- Pressure
- Force
- Temperature
- Energy
Sound is the form of __________________.
scienceGrade6
- Pressure
- Force
- Temperature
- Energy
science
All eclipse occur on same day.
- True
- False
All eclipse occur on same day.
scienceGrade6
- True
- False
science
Penumbra is the darkest region of a shadow.
- True
- False
Penumbra is the darkest region of a shadow.
scienceGrade6
- True
- False
science
Sun shadow forms _________ eclipse.
- Solar
- Lunar
- Annular
- None
Sun shadow forms _________ eclipse.
scienceGrade6
- Solar
- Lunar
- Annular
- None