year+9+sound+assignment

**__Year 9 Sound Assignment __**
Option A. compare light and sound.

Q**.** What are their speeds? A. the speed of light moves at exactly 299,792,458 metres per second while sound only tavels at the a speed of 350 meters per second.

Q. What do they have in common A. something they both have in common is that they can both be reflected, sound reflects back as an echo and with light it will reflect itself when you shine it in the mirror. another thing they have in commonn is that they're both a form of energy.

Q. What is sonic boom? A. a sonic boom is a thunder-like sound a person hears on ground, this is caused when an aircraft or some sort of aerospace vehicle flies overhead faster than the speed of sound or supersonic.

Q. Can you hear sound in space? A. no, sound cannot travel through space because in order for sound to travel you need a medium of three states of matter: solid, gas and liquid.