sound (class 9)

Front

Which part of human ear converts sound vibrations into electrical signals?

Back

Cochlea

Front

Children under the age of 5 can hear up to

Back

25kHz

Front

Speed of sound depends upon

Back

temperature of medium

Front

Which characteristic allows us to distinguish between sounds having the same pitch and loudness?

Back

timber

Front

Loud sound can travel a larger distance, due to

Back

Higher energy

Front

What are transverse waves?

Back

In these waves the individual particles of the medium move in a direction perpendicular to the direction of propagation of the disturbance

Front

longitudinal waves are?

Back

In these waves the individual particles of the medium move in a direction parallel to the direction of propagation of the disturbance

Front

Sound is a ..............

Back

longitudinal wave

Front

light is a .........

Back

transverse wave

Front

Sound cannot travel through _______.

Back

vacuum