Properties of Sound

PROPERTY: a characteristic that something is known by. For example, a property of ripe strawberries is that their colour is red.

OBSERVE: to watch and remember what happened.

EXPERIMENT: to observe what happens to something when different conditions are imposed on it.

CONDITION: a state of being.

IMPOSE: to make someone or something do something.

HYPOTHESIS: a prediction or evidence based guess that can be tested to find the truth.

What properties of sound can you figure out? There will be a bunch you can figure out by just experimenting with sound. Watch the video to find out how to do the experiment.

Fill out this table with your observations and hypotheses about the properties of sound.

You will need to use a sound meter like this free online meter by Youlean.

Observation (observe/listen the noise and write down what happened) I think	Evidence (what the meter says)	Hypothesis (what sound does) ✅ ❎
Sound is louder when it is closer to the source recording it.	The amount of noise recorded by the meter said 100dB and the amount of noise recorded by the meter said 102dB.	I think the volume of a clap changes depending on where the clap took place.
Sound is louder when it is closer to the source recording it.	The meter recorded by Mr Wong’s computer read 80dB but the meter recorded by Mr Ogilvie’s computer read 56dB.	As sound travels it dissipates.
The sound was basically the same in different positions around the meter.	The meter recorded the same sound behind, front, left side, right side and above.	Sound travels the same in every direction.
The meter rose when Mr Wong clapped around the corner.	Mr Wong clapped in another area of the classroom and the meter was still able record the sound.	Sound can travel in corners.