What do you mean by Sound Sources?
Anything that makes a sound
Does Sound travel in Space? Give reason
No. Space is vacuum. There are no particles in space
What is noise?
When Sound molecules move randomly
Pluck the string soft, then pluck it hard. What is the difference? Why?
More energy in loud sound, less energy in soft sound
What is air made up of?
Tiny particles called molecules
which part of our ear vibrates and receives the sound?
Ear Drum
Name 2 soft sounds
Fridge, AC, A whisper
Name 2 words that are like sounds?
Boom, Pop,
What do you mean by vibration?
When the string vibrates the molecules near it, setting out a series of vibrations, till it reaches your ear.
Find 2 sources of loud sound in your house
Mixie, Vacuum Cleaner, Toy
What is Sound?
It is a type of energy
When you stop the rubberband when it is vibrating, What happens? Why?
Sound stops, cos vibrations stop
How are Sounds made?
Through Vibrations
How does sound move from a bell to your ear?
Sets out a chain reaction of sound molecules from the bell to your ear
What is a note?
When the sound particles move in a particular set way or rhythmn, a note is created
How does a rubberband noise reach our ears?
The rubberband first vibrates and it sets off a chain reaction of air molecules