Unit 1 Physical Science

A student creates diagrams of two models to show magnified views of molecular motion in a solid and a liquid, as shown.

• Which sample has the most molecules?

• Which sample has the largest molecules?

• Which sample has the most molecular motion?

• Which sample has molecules with definite volume?

Tags

NGSS.MS-PS1-4

In which state of matter is there the most molecular motion?

• Gas

• Solid

• Liquid

• Plasma

Tags

NGSS.MS-PS1-4

The correct phase sequence shown above is ________________, ________________, ________________.

• Gas, Solid, Liquid

• Solid, Liquid, Gas

• Liquid, Gas, Solid

• Gas, Liquid, Solid

Tags

NGSS.MS-PS1-4

At room temperature, the metal mercury is a liquid. How could mercury be changed into a solid?

• by adding energy to increase molecular motion

• by adding energy to decrease molecular motion

• by removing energy to increase molecular motion

• by removing energy to decrease molecular motion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Absolute zero represents a substance's minimum

• gravitational potential energy.

• heat of fusion.

• internal molecular energy.

• specific heat.

Tags

NGSS.HS-PS3-4

The image shows the drawing a student made of ice molecules observed through an electron microscope.

Is the student's drawing correct?

• Yes, because the molecules in the solid state are arranged randomly and move randomly relative to each other.

• No, because the molecules in the solid state are arranged in ordered arrays and do not move much relative to each other.

• No, because the molecules in the solid state are arranged in ordered arrays and move randomly relative to each other.

• Yes, because the molecules in the solid state are arranged randomly and do not move much relative to each other.

Which liquid has the highest viscosity?

• w

• x

• y

• z

Which liquid has the weakest intermolecular forces?

• w

• x

• y

• z

Tags

NGSS.MS-PS1-2

Which liquid would have the highest boiling point?

• w

• x

• y

• z

Tags

NGSS.MS-PS1-4

The diagram shows atoms in two different states of matter. Use the diagram to answer any questions that follow.

• A is a solid, and B is a liquid.

• A is a gas, and B is a liquid.

• A is a liquid, and B is a solid.

• A is a gas, and B is a solid.

Tags

NGSS.MS-PS1-1