Ear and sound

Sound is produce by

• Vacuum

• Sound wave

• Hitting

• Vibration

Name structure label with 5

• Eardrum

• Cochlea

• Pinna

• Eustachian tube

Which label of ear is not involved in hearing system and function for balancing of air pressure only?

• Eardrum 3

• Cochlea 5

• Auditory nerve 6

• Eustachian tube 4

Which label is correctly matched?

• Eardrum 1

• Cochlea 6

• Pinna 1

• Auditory canal 7

Which of the following is good reflector of sound?

• Textile

• Sponge

• Paper

• Walls

Reflected or repeated sound is known as

• Echo

• Sound waves

• vibration

• vacuum

Based on the diagram, which of the following correct about characteristics of sound?

• If you turned up volume of radio, loudness decreases

• Longer wavelength is high pitch

• High pitch is high frequency

Why you can't hear an explosion or any other sound in space?

• Space is very far from us

• Space is vacuum (no air)

• Space has no energy

Which bottle has the highest pitch?

• 1

• 2

• 3

Fisherman use this to catch fish in the ocean as shown in the diagram. Name it

• Sonar

• Ultra sound

• Ultrasonic

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2