Understanding Matter: Solids, Liquids, and Gases

What are the components of an atom?

• Protons, Photons, and Electrons

• Protons, Neutrons, and Photons

• Electrons, Photons, and Neutrons

• Protons, Neutrons, and Electrons

Why do solids have a definite shape?

• Because their particles are randomly arranged

• Because their particles have high kinetic energy

• Because their particles are closely packed in a regular pattern

• Because their particles are free to move

Which of the following is true about liquids?

• They have a definite shape and volume

• They have a definite volume but no definite shape

• They have no definite shape or volume

• They are easy to compress

What allows gas particles to move freely?

• Strong bonds between particles

• High kinetic energy and weak bonds

• Regular pattern of particles

• Low kinetic energy and strong bonds

How do gases behave in a container?

• They spread out to fill the container

• They compress to fit the container

• They form a regular pattern

• They maintain a fixed shape