G1 Sci. U1 Sound

why do we use sounds ?

• To sleep

• To communicate

Sound travels for long distance.

• True

• False

How family and friends communicate nowadays ?

• By phones and computers.

• By drums and bells.

Changing the length (size) of musical instruments change the sound.

• False

• True

What is sound ?

• Sound is energy

• Sound is vibration

Vibrate is to move back and forth very quickly.

• False

• True

Pitch is :

• High and low

• High and loud

• Loud or soft

• Low and soft

Volume is :

• High and low

• High and loud

• Loud or soft

• Low and soft

Sound makes a vibration

• True

• False

Large instruments can make lower sounds.

• False

• True