SOUND

Sound happens when there are things … .

• Hit soft materials

• Bounce

• move

• vibrate

The correct pairs of instrument and how they are played are shown by numbers …

• 1 and 3

• 2 and 4

• 2 and 3

• 1 and 4

A phenomenon where an object also vibrates due to another vibrating object is called ...

• frequency

• amplitude

• vibrating

• resonance

The animals that can hear ultrasonic sound are numbers …

• 1 and 3

• 2 and 4

• 1 and 2

• 2 and 3

The following animal that makes sound by rubbing its wings against its wings is … .

• elephant

• bee

• cow

• male grasshopper

Based on the table, the air inside of the music instrument on numbers … vibrates when they produce sound.

• 1 and 2

• 2 and 4

• 1 and 3

• 3 and 4

This animal makes sound by vibrating their … .

• wings

• throat

• legs

• mouth

Kinds of animal that can hear a sound has frequency below 20 Hz are ...

• cricket and swan

• dolphin and bats

• dog and bats

• dolphin and elephant

Based on the picture above, the type of sound that uses to capture live images from the inside of our body is … .

• audiosonic

• infrasonic

• ultrasonic

• videosonic

Based on the table above, the materials that can be absorbed are on numbers … .

• 1 and 2

• 2 and 4

• 1 and 3

• 3 and 4