4a) Temperature impacts an object’s state of matter

What is a characteristic property of solids?

• Particles are free to move around randomly.

• Particles are held in fixed positions and vibrate.

• They do not have a definite shape or volume.

• They have weak forces of attraction between particles.

What happens to the particles of a solid when it reaches its melting point?

• They gain energy and start to move faster, but remain in fixed positions.

• They lose energy and form stronger bonds, becoming more rigid.

• They gain enough energy to break free from their fixed bonds and move around.

• They evaporate directly into a gas without becoming a liquid.

Which statement accurately describes the particles in a liquid?

• They are arranged in a regular lattice structure with strong forces.

• They have no forces of attraction between them and spread out completely.

• They are free to move around but remain compact with a definite volume.

• They vibrate in fixed positions and have a definite shape.

What occurs when a liquid reaches its boiling point?

• Particles slow down and form more bonds, becoming a solid.

• Particles gain enough energy to break all bonds and become a gas.

• Particles start to vibrate more intensely within their fixed positions.

• Particles become more compact and their volume decreases.

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What is a limitation of the particle model used to explain states of matter?

• It accurately represents particles as solid, inelastic spheres.

• It includes detailed information about the strength of forces between particles.

• It fails to explain how substances change from one state to another.

• It simplifies particles as solid spheres, when they are actually atoms, ions, or molecules.