particle model for matter

Question 1

What is the basic premise of the particle model of matter?

Answer 1

Matter is made up of tiny particles that are in constant motion.

Question 2

True or False: The particle model states that all matter is composed of atoms.

Answer 2

True

Question 3

Fill in the blank: In the particle model, the properties of a substance depend on the ______ and ______ of its particles.

Answer 3

type, arrangement

Question 4

What are the three states of matter described by the particle model?

Answer 4

Solid, liquid, gas

Question 5

Multiple Choice: Which state of matter has particles that are tightly packed and vibrate in place? A) Gas B) Solid C) Liquid

Answer 5

B) Solid

Question 6

What happens to the particles in a gas when temperature increases?

Answer 6

They move faster and spread further apart.

Question 7

True or False: In liquids, particles are more closely packed than in gases but can slide past one another.

Answer 7

True

Question 8

Fill in the blank: The ______ of a substance is determined by the speed and arrangement of its particles.

Answer 8

temperature

Question 9

What is the term for the process when a solid turns directly into a gas?

Answer 9

Sublimation

Question 10

Multiple Choice: Which of the following describes a liquid? A) Definite shape B) Definite volume C) Neither A nor B

Answer 10

B) Definite volume

Question 11

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

Answer 11

Kinetic energy

Question 12

True or False: The particle model can explain changes in states of matter.

Answer 12

True

Question 13

Fill in the blank: When a substance is heated, its particles gain ______.

Answer 13

energy

Question 14

What is the main difference between crystalline and amorphous solids?

Answer 14

Crystalline solids have a regular, repeating arrangement of particles, while amorphous solids do not.

Question 15

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

Answer 15

C) Gas

Question 16

What is the term for the process of a liquid becoming a gas?

Answer 16

Evaporation

Question 17

True or False: Particles in a solid can move freely.

Answer 17

False

Question 18

Fill in the blank: The particle model helps to explain the ______ of different materials.

Answer 18

behavior

Question 19

What does the term ‘intermolecular forces’ refer to?

Answer 19

Forces that attract particles to each other in a substance.

Question 20

Multiple Choice: Which state of matter has no definite volume or shape? A) Solid B) Liquid C) Gas

Answer 20

C) Gas

Question 21

What is the effect of increasing pressure on a gas according to the particle model?

Answer 21

It forces the particles closer together, increasing the density.

Question 22

True or False: All particles in a substance have the same amount of energy.

Answer 22

False

Question 23

Fill in the blank: The particle model can be used to explain ______ changes such as melting and freezing.

Answer 23

physical

Question 24

What happens to the arrangement of particles during freezing?

Answer 24

Particles become more ordered and form a solid.

Question 25

Multiple Choice: Which statement is true about gases? A) They have a definite shape. B) They have a definite volume. C) They expand to fill their container.

Answer 25

C) They expand to fill their container.

Question 26

What is the relationship between temperature and particle motion?

Answer 26

Higher temperature increases particle motion.

Question 27

True or False: The particle model is only applicable to solids.

Answer 27

False