Thermal Energy

The diagram above represents three phases of matter labeled as 1, 2, and 3. Which correctly identifies the phases of matter represented by the diagrams?

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Tags

NGSS.MS-PS1-4

The diagram represents four processes, labeled A, B, C, and D, that occur when water changes phase.

Which two processes increase the motion of the molecules?

• A and B

• B and C

• C and D

• A and D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The diagram represents four processes, labeled A, B, C, and D, that occur when water changes phase.

Which two processes decrease the heat energy of a gas?

• A and B

• B and C

• C and D

• A and D

Tags

NGSS.MS-PS1-4

A substance has a freezing point of –38°C and a boiling point of 356°C.

At what temperature would this substance be in its liquid state?

• 60°C

• –50°C

• –80°C

• 305°C

Tags

NGSS.MS-PS1-4

The density of most matter _______________ as it is heated.

• increases

• decreases

• remains the same

Tags

NGSS.MS-PS1-4

Which graph best represents the relative distance between the particles of most substances in their solid, liquid, and gas states?

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Tags

NGSS.MS-PS1-4

Which of the following sets of tools would be most useful in an experiment measuring the rate of transfer of thermal energy in four different liquids?

• Microscope, funnel, metric ruler

• Triple-beam balance, beakers, metric ruler

• Hot plate stove, beakers, thermometers

• pH meter, test tubes, forceps

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which graph correctly shows the effect of heat energy on the motion of particles of matter?

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Tags

NGSS.MS-PS1-4

The diagram shows water being heated in a flask. The flask has a rubber stopper with a glass tube extending through it. The current level of the water in the glass tube is indicated. The temperature of the water is 25°C. If heating continues, the water in the glass tube will most likely

• turn into a solid

• become more dense

• move into the flask

• rise higher in the tube

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Heat will continue to transfer between two areas or objects until

• both areas/objects are the same temperature

• the melting point is reached

• the colder object absorbs all of the heat energy

• all heat energy is lost to the air

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5