What causes changes in the state of matter?

Physics

2 answers:

vekshin12 years ago

6 0

Answer:

i think it's 1) because

Explanation:

Adding or removing energy from matter causes a physical change as matter moves from one state to another.

Komok [63]2 years ago

3 0

I thinks it’s 1 because adding or removing energy from matter that cause a physical change

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Here we have mass that moves at ceratin speed. This means that we have momentum. The law that must be observed is law of conservation of momentum. It states that momentum before certain event is equal to a momentum after that event. Here we have three masses so we can write this as:
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describe an experiment to show how the frequency of a note emitted by a vibrating string depends on the tension of the string

mart [117]

Easy !

Take any musical instrument with strings ... a violin, a guitar, etc.

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Pluck any string. Then, slightly twist the tuning peg for that string,
and pluck the string again.

Twisting the peg only changed the string's tension; the length
couldn't change.

-- If you twisted the peg in the direction that made the string slightly
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-- If you twisted the peg in the direction that made the string slightly
looser, then your second pluck had a lower pitch than the first one.

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3 years ago