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

sound waves move in towards the object that is producing sound

• true

• false

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

longitudinal wave is when the vibration happens in the same direction as the wave is travelling.

• true

• false

what determines the speed of sound?

• how closely packed the particles are

• how far away the sound is

• how hot the weather is

• potato