C1 Particulate Nature of Matter

What is the name given to change of state from a solid to a liquid?

• melting

• freezing

• evaporating

• condensing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the name given to the change state from a gas to a solid?

• sublimation

• reverse sublimation

• evaporating

• condensing

Which statement best describes the fact that gases can be compressed?

• The particles in a gas do not have a fixed volume.

• The particles in a gas are very far apart.

• The particles in a gas have no force of attraction (bonds) between them.

• The particles in a gas are constantly moving very rapidly.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement best describes the fact that a liquid cannot be compressed?

• The particles in a liquid are all close and touching.

• The particles in a liquid are constantly moving.

• The particles in a liquid have weak attractive forces between them.

• The particles in a liquid can change position.

Tags

NGSS.MS-PS3-4

Which two statements best describes the fact that a liquid flows?

• The particles in a liquid have weak bonds between them.

• The particles in a liquid have no fixed position.

• The particles in a liquid are close and touching.

• The particles in a liquid are moving slowly over each other.

Diffusion occurs in which two states of matter?

• Solids

• Liquids

• Gases

When a liquid evaporates the temperature of the liquid decreases. Which three statements best describe why this happens?

• Some closely packed particles at the surface of the liquid break the bonds which are keeping them close to neighbouring particles.

• Breaking bonds is an endothermic process (requires energy).

• When particles enter the gaseous state they take their (kinetic) energy with them.

• Particles at the surface of the liquid make bonds with gaseous particles above the surface of the liquid.

• Making bonds is an exothermic process (releases energy).

The boiling points of four different liquids are given below. The particles in the liquids have approximately the same mass. Which liquid has the weakest bonds between its particles?

• Liquid A boils at 20°C

• Liquid B boils at 30°C

• Liquid C boils at 40°C

• Liquid D boils at 50°C

Tags

NGSS.HS-PS1-3

Which statement about liquids is correct?

• They have a fixed shape and a fixed volume.

• They have a fixed shape but not a fixed volume.

• They have no fixed shape but they do have a fixed volume.

• They have no fixed shape and no fixed volume.

The three states of matter are represented by diagrams X, Y and Z. Which change occurs during condensation?

• X to Y

• X to Z

• Y to X

• Z to X

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4