Question

name __________ date _______ period __
states of matter and energy
part 3: multiple choice: read each question carefully and place an x next to the one correct answer.

1. which state of matter has a definite shape and a definite volume?

liquid gas solid plasma

1. what happens to the particles of a liquid when it becomes a gas?

they get closer together they move more slowly
they spread farther apart and move faster they stop moving completely

1. what is the process called when a liquid changes to a gas?

condensation evaporation freezing melting

1. when ice melts, what happens to its particles?

slow down and get closer together become more organized and stop moving
speed up; arrangement becomes less organized they disappear

1. what is the state of matter of steam?

solid liquid gas plasma

Explanation:

Question 11

In the states of matter, solids have particles closely packed in a fixed arrangement, giving them a definite shape and volume. Liquids have definite volume but not shape, gases have neither, and plasma is an ionized gas state.

When a liquid turns to gas (vaporization), energy is added, so particles gain kinetic energy, move faster, and spread farther apart (increasing volume). Other options are incorrect: closer together is opposite, slower movement is for cooling, and particles never stop moving.

Evaporation is the process of a liquid changing to a gas (vapor) at the surface (or boiling for bulk). Condensation is gas to liquid, freezing is liquid to solid, melting is solid to liquid.

Answer:

Solid (place "X" next to "Solid")

Question 12