Physics
Grade-8
Easy
Question
Sound is a form of ____.
- Work
- Force
- Energy
- Velocity
Hint:
Sound energy is the form of energy generated when an object vibrates.
The correct answer is: Energy
Sound is a form of energy.
- Sound is a form of energy or a vibration that travels through the solid, liquid, and gas.
- It transmits through a medium at a particular speed to produce a sound.
Related Questions to study
Physics
Pick the wrong statement about echo.
Pick the wrong statement about echo.
PhysicsGrade-8
Physics
Cinema theatres are designed for sound _______.
Cinema theatres are designed for sound _______.
PhysicsGrade-8
Physics
To make sound louder, sound should be _______.
- Echo and reverberation are based on the reflections of sound.
To make sound louder, sound should be _______.
PhysicsGrade-8
- Echo and reverberation are based on the reflections of sound.
Physics
Horn from vehicle is the source of ___________ .
Horn from vehicle is the source of ___________ .
PhysicsGrade-8
Physics
Sonar has a receiver called __________
- Seismographs are instruments used to record the motion of the ground during an earthquake.
Sonar has a receiver called __________
PhysicsGrade-8
- Seismographs are instruments used to record the motion of the ground during an earthquake.
Physics
If the sound travelled a distance of 12 m in 2 s. Find the velocity of sound in echo.
If the sound travelled a distance of 12 m in 2 s. Find the velocity of sound in echo.
PhysicsGrade-8
Physics
Drums can produce ultrasound.
Drums can produce ultrasound.
PhysicsGrade-8
Physics
The units of time:
1 Bar = 105 Pascal
The units of time:
PhysicsGrade-8
1 Bar = 105 Pascal
Physics
Reverberation occurs only in ________.
Reverberation occurs only in ________.
PhysicsGrade-8
Physics
The louder unpleasant sound is called as ______.
The louder unpleasant sound is called as ______.
PhysicsGrade-8
Physics
SONAR is used in _______.
- It works on the principle of reflection of ultrasound waves.
SONAR is used in _______.
PhysicsGrade-8
- It works on the principle of reflection of ultrasound waves.
Physics
The sound from the transmitter of the SONAR is reflected by.
The sound from the transmitter of the SONAR is reflected by.
PhysicsGrade-8
Physics
The SONAR can detect the enemy ship using _________.
The SONAR can detect the enemy ship using _________.
PhysicsGrade-8
Physics
Distance can be measured in ___________.
- The SI unit of time is second.
- The SI unit of pressure is pascal.
- The SI unit of force is newton.
Distance can be measured in ___________.
PhysicsGrade-8
- The SI unit of time is second.
- The SI unit of pressure is pascal.
- The SI unit of force is newton.
Physics
The SI unit of velocity is kg/s.
The SI unit of velocity is kg/s.
PhysicsGrade-8
