which of the following is not an example of matter a,steel b,nitrogen c,clouds d,heat e,water f music?

start with which ones are definitely matter.

a) steel is matter

b) nitrogen is definitely matter

c) clouds are definitely made of water vapor, pollution, and other odds and ends and are definitely matter

e) water is definitely matter

leaves heat and music.

so is heat matter? heat is definitely a form of energy and for your class I would go ahead and ignore the "matter/energy" discussion and call heat "not matter"

what about music? music is an arrangement of sounds. so is sound matter? Again, for your class I would ignore the "propagation of waves" argument and assume sound is the vibration of matter. not matter itself. Therefore music is not matter.

so the answer is d) heat and f) music

Roger..... you are arguing for sound = matter by stating sound is waves consisting of gas molecules..... sound can be transmitted through solids and liquids too right? doesn't have to be a gas. So what happens to the molecules when sound propages through say a solid then a liquid? A guy in a steel boat drops a lead weight on the floor of the boat. can a diver down below hear it? yes.... Do air molecules diffuse through the boat and through the water carrying the sound. No. Instead of sound = air waves, more correctly, sound is the disturbance of energy states of matter and is propogated in waves.

The only real argument here for "does sound have matter" is this. Is there a wave/particle duality of sound as there is in light? Well, given that no one has yet demonstrated that (probably because sound propogates in matter) and given that this person is probably in a beginning chemistry class, I would say. No. and therefore sound is not matter.

Steel and Nitrogen are matter. Clouds and Water are made of matter. Heat is the measure of the temperature of matter. And music is made up of sound waves of various pitch, which require matter to act upon.

My choice is Music, which is something acting upon matter, but which is not matter. This would be the obvious choice except that heat is not matter either--it is the measurement of a condition of matter.

I agree with heat and music

Heat is definitely energy, not matter. Music is sound, which is also a form of energy.

Interstingly you can convert matter into energy - that's what e=mc2 is all about (that's how the hydrogen bomb works).

Heat.

It is electromagnetic radiation; however it can be equated to matter by Einstein's formula E = MC^2.

Music is matter because sound waves consist of alternating pressure waves composed of gas molecules. There are no gas particles in outer space, and this is why sound does not exist there.

Music and heat lol. all the others are composed of atoms, so it means of matter. clouds are composed of tiny particles of water.

heat and music

music and heat

(f) Music: it travels in the form of waves (electromagnetic radiation) and does not require a medium to travel i.e. solid, liquid or gas.

music and heat