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3 years ago

Which state or states of matter take(s) the shape of its container? A) gas B) solid C) liquid D) liquid and gas

Physics

1 answer:

SpyIntel [72]3 years ago

7 0

Answer:

D) liquid and gas

Explanation:

The three main states of matter are:

- Solid: in solids, the molecules are bond together by strong intermolecular forces, so the molecules are not free to move. Therefore, a solid has a definite shape, so it does not take the shape of its container.

- Liquid: in liquids, molecules are not bond together, so they are free to move (still, there are some weak intermolecular forces which keep them close to each other). Since in liquids molecules can slide past each other, they take the shape of the container.

- Gas: in gases, molecules are totally free to move, so gases take the shape (and also the volume) of the container.

Based on the definitions above, we can conclude that the correct answer is

D) liquid and gas

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Magnetic forces and electric forces are quite similar, lets take a look at the answers possible:

A. They both have charges

False, magnetic forces do not HAVE charges, but they have an EFFECT on moving charges (that are creating a magnetic field around them).

Why? Electrical forces have positive and negative charges while magnetic forces have a north and south POLE. These two are different forces, therefore magnetic forces do not HAVE charges.

B. In both, opposites attract

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Therefore, B, is the only true answer that describes how magnetic and electric forces are similar.

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