particles Flashcards
(26 cards)
What are the three states of matter?
Solid, liquid, gas.
True or False: In a solid, particles are tightly packed and vibrate in place.
True.
Fill in the blank: The process by which particles spread from an area of high concentration to an area of low concentration is called _____.
diffusion.
What state of matter has a definite shape and volume?
Solid.
Which state of matter takes the shape of its container but has a definite volume?
Liquid.
True or False: Gases have a definite shape and volume.
False.
What happens to the particles in a gas when heated?
They move faster and spread apart.
Multiple Choice: Which of the following best describes the particle arrangement in a liquid? A) Fixed, B) Close but can move past each other, C) Far apart and moving freely.
B) Close but can move past each other.
What is the term for the change of state from solid to liquid?
Melting.
What is the term for the change of state from liquid to gas?
Vaporization.
True or False: Diffusion occurs faster in solids than in gases.
False.
Fill in the blank: The process of a gas turning into a liquid is called _____.
condensation.
What is the primary factor that affects the rate of diffusion?
Temperature.
Multiple Choice: Which state of matter has particles that are very far apart and move freely? A) Solid, B) Liquid, C) Gas.
C) Gas.
What is the term for the change of state from gas to solid?
Deposition.
True or False: All matter is made up of tiny particles.
True.
What happens to the arrangement of particles when a substance freezes?
The particles become more closely packed and arranged in a fixed structure.
Fill in the blank: When a solid is heated, it may change to a liquid through the process of _____.
melting.
What is the effect of increased temperature on the motion of particles?
It increases the energy and motion of the particles.
Multiple Choice: Which process describes the change from liquid to solid? A) Melting, B) Freezing, C) Condensation.
B) Freezing.
What is the term for the change of state from solid to gas?
Sublimation.
True or False: In a liquid, particles have more energy than in a solid.
True.
What is the name of the process where a gas changes directly to a solid?
Deposition.
Fill in the blank: The temperature at which a solid becomes a liquid is called its _____.
melting point.
