Year 9- Sound

how is sound created?

• when something vibrates or moves back and forth quickly

• when particles zoom around

• ups and downs in volume

vibrating particles transmit sound

• true

• false

sound can be transmitted through the following mediums... (select all that apply)

• solid

• liquid

• gas

• potato

a soundwave has two parts...

• compressions and rarefactions

• ups and downs

• left and right

• potato

what is this?

• spring

• soundwave

• left to right

• potato

a sound wave is a movement of alternating compressions and rarefactions

• true

• false

sound waves move in towards the object that is producing sound

• true

• false

a drum produces sound by...

• the skin of the drum vibrating

• the drum stick hitting the skin

• the outside of the drum

• potato

Transverse wave is when the vibration is at right angles to the direction of the wave

• true

• false

what type of wave is this?

• longitudinal

• transverse

• sound

• spring