particle theory

Question 1

What is the basic premise of particle theory?

Answer 1

All matter is made up of tiny particles.

Question 2

True or False: According to particle theory, particles are stationary.

Answer 2

False

Question 3

Fill in the blank: The three states of matter are solid, liquid, and _____ .

Answer 3

gas

Question 4

What happens to the particles in a solid when heated?

Answer 4

They vibrate more and may eventually break free to become a liquid.

Question 5

Multiple Choice: Which of the following states of matter has particles that are far apart and move freely? A) Solid B) Liquid C) Gas

Answer 5

C) Gas

Question 6

What is the term for the energy of motion that particles possess?

Answer 6

Kinetic energy

Question 7

True or False: Particles in a liquid are more tightly packed than in a gas.

Answer 7

True

Question 8

Fill in the blank: The process of a solid turning directly into a gas is called _____ .

Answer 8

sublimation

Question 9

What is the effect of temperature on particle movement?

Answer 9

Higher temperature increases particle movement.

Question 10

Multiple Choice: What is the primary force that holds particles together in a solid? A) Gravitational force B) Electromagnetic force C) Nuclear force

Answer 10

B) Electromagnetic force

Question 11

What is diffusion in the context of particle theory?

Answer 11

The movement of particles from an area of higher concentration to an area of lower concentration.

Question 12

True or False: Gases have a definite shape and volume.

Answer 12

False

Question 13

Fill in the blank: When a gas is cooled, its particles move _____ .

Answer 13

slower

Question 14

What is the term for the change of state from gas to liquid?

Answer 14

Condensation

Question 15

Multiple Choice: Which particle theory concept explains why a balloon expands when heated? A) Particle movement B) Particle density C) Particle size

Answer 15

A) Particle movement

Question 16

What occurs at the atomic level during freezing?

Answer 16

Particles lose energy and move closer together.

Question 17

True or False: All particles are the same size.

Answer 17

False

Question 18

Fill in the blank: The state of matter that has a definite volume but no definite shape is called _____ .

Answer 18

liquid

Question 19

What is the relationship between particle speed and temperature?

Answer 19

As temperature increases, particle speed increases.

Question 20

Multiple Choice: Which of the following describes plasma? A) Solid particles B) Charged particles C) Fixed shape

Answer 20

B) Charged particles

Question 21

What is the term for the energy required to change a substance from solid to liquid?

Answer 21

Heat of fusion

Question 22

True or False: In particle theory, particles are always in motion.

Answer 22

True

Question 23

Fill in the blank: The process of a liquid turning into a gas is called _____ .

Answer 23

evaporation

Question 24

What happens during the process of condensation at the particle level?

Answer 24

Particles lose energy and come closer together to form a liquid.

Question 25

Multiple Choice: Which state of matter has the highest energy? A) Solid B) Liquid C) Gas

Answer 25

C) Gas

Question 26

What is the difference between an atom and a molecule?

Answer 26

An atom is a single unit, while a molecule is made up of two or more atoms bonded together.

Question 27

True or False: The particle theory can explain the behavior of both gases and liquids.

Answer 27

True