Sound __

Sounds can be .......... or ...........

• high - low

• loud - soft

• low - soft

Is it loud or soft ?

• loud

• soft

• low

Is it loud or soft ?

• loud

• soft

• low

A whispering is a ................. sound.

• soft

• loud

• low

Small vibrations cause ............... sounds.

• soft

• loud

• high

• low

Large vibrations cause ......... sounds

• soft

• loud

• high

• low

The ................ of a sound is how loud or soft the sound is.

• vibration

• volume

• particles

We measure sound in units called ...............

• vibration

• volume

• decibels (dB)

What is this ?

• meter

• sound tube

• sound level meter

If you stand far away from a source of sound you will hear ........ sound.This is because sound ................. have to travel .................. distances to reach your ear.

• soft - vibrations - longer

• loud- particles - shorter

• soft - sources - small