sound

In which medium sound can't travel?

• solid

• liquid

• gas

• vacuum

In which medium speed of sound are fastest?

• vacuum

• solid

• liquid

• gas

An object that does not vibrate cannot produce

• sound
• light
• heat
• electricity

How can I produce a sound?

• heating an object

• hitting an object

• moving the mouth

• looking an object

Sounds are made when things or air . . . .

What are vibrating in this things to make sound?

look at the picture.

In which medium sound can travel?

• air

• solid

• vacuum

• liquid

look at the picture

What are vibrating in this things to make sound?

look at the picture.

In which medium sound can travel?

• air

• solid

• vacuum

• liquid

look at the picture.

In which medium sound can travel?

• air

• solid

• vaccum

• liquid