Sc 7 P 11 2

Students are investigating temperature changes on substances in their gaseous state. Which of the following is most likely to happen to the gaseous substance when the students decrease the temperature?

• molecular motion of the atoms will increase, causing it to change to a solid state

• molecular motion of the atoms will decrease, causing it to change to a liquid state

• molecular motion of the atoms will decrease, causing it to lose molecular mass

• molecular motion of the atoms will increase, causing it to change from the gaseous state

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Temperature is the measurement of the average energy of motion of the particles in a substance. Because of this, one could conclude that substances that have had an increase in temperature have USUALLY

• undergone a chemical change.

• changed into a solid state.

• changed into a liquid or gaseous state.

• decreased in molecular weight.

Tags

NGSS.MS-PS1-4

The table shows the affect of temperature change on three different substances. From the observations in the table above, one could conclude that increases in temperatures change

• liquids to solids and liquids to gases.

• solids to liquids and liquids to gases.

• liquids to solids and gases to liquids.

• solids to liquids and gases to liquids.

Tags

NGSS.MS-PS1-4

An unknown substance changes states when heat energy is added or removed. From this information, one can conclude that temperature changes affect the

• chemical state of the substance.

• physical state of the substance.

• atomic state of the substance.

• molecular state of the substance.

Tags

NGSS.MS-PS1-4

After observing many different investigations on the state changes of substances, one could conclude that most substances that change from a gaseous state to a liquid or solid state have had a(n)

• increase in molecular weight.

• decrease in molecular weight.

• increase in temperature.

• decrease in temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Use the diagram to answer the following quetion(s).

The same molecular substance in three different states at the same pressure is shown in the diagram above. Based on molecular motion, the temperature of the substance at state Y is __________.

• higher than the temperature at state Z

• lower than the temperature at state Z

• higher than the temperature at state X

• the same as the temperature at state X

Tags

NGSS.MS-PS1-4

Which of the following is most likely to happen to a liquid substance when the temperature is increased?

• molecular motion of the atoms will decrease, causing it to change from a liquid to a solid

• molecular motion of the atoms will decrease, causing it to change to a gaseous state

• molecular motion of the atoms will increase, causing it to change to a solid state

• molecular motion of the atoms will increase, causing it to change to a gaseous state

Tags

NGSS.MS-PS1-4

Use the diagram to answer the following quetion(s).

The same molecular substance in three different states at the same pressure is shown in the diagram above. Which of the following has MOST likely happened when the substance changes from state Z to state Y?

• the melting point increased

• the temperature decreased

• the temperature increased

• the boiling point increased

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The effect of temperature change on three different substances is shown in the table. Based on the data, one could conclude that gases change to liquids and liquids change to solids after

• decreases in temperature.

• increases in temperature.

• the three substances react.

• chemical changes in temperature.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The diagram shows the same molecular substance in three different states of matter at the same pressure. When the temperature is lowered in the system, the state of the substance can change from _________.

• state Z to state Y

• state Z to state X

• state Y to state X

• state X to state Z

Tags

NGSS.MS-PS1-4