Describe how the sound from the radio reaches all parts of the room . [2m] I need the main points and keywords.

Question

compassionate · Answer

What does 2m mean?  I assume it was given in your lesson.

anonymous · Answer

2 marks

compassionate · Answer

Alright.

compassionate · Answer

Sound waves are vibrations that travel in the air. These vibrations tend to bounce around and become disturbed when they come in contact with objects; especially solid objects like walls. These sounds need to be in a certain frequency range in order for humans to hear them. When a frequency or sound is formed, it disturbs the air around it and makes that nice little tune that you're listening to on your radio. 

- Regards, Compassionate.