Physical Science Review (Chemistry)

Which of these forms of water has the greatest kinetic energy?

• boiling water

• melting water

• freezing water

• condensing water

Tags

NGSS.MS-PS1-4

A cup of water at 40 ⁰C and a cup of water at 5 ⁰C are left on a table. Which graph correctly shows the temperature of the two cups of water as time passes?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

When a steel block at 100 ⁰C is placed on top of a copper block at 20 ⁰C, the thermal energy of the copper begins to increase. Which of the following is the source of this increase in energy?

• the work done by the molecules within the copper

• the work done by the interaction of the two metals

• heat flowing by means of conduction

• heat flowing by means of radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

The drawing on this picture shows a kernel of corn that is heated to make popcorn. Which of the following best explains what happens to the drop of liquid water inside the kernel of corn during this process?

• The liquid water is destroyed by the heat.

• The liquid water is converted into heat.

• The liquid water undergoes a physical change into steam.

• The liquid water undergoes a chemical change into hydrogen and oxygen.

Tags

NGSS.MS-PS1-4

Four containers of water with different temperatures are placed on a table as shown. The temperature of the room is 25 ⁰C.

After four hours, which beaker of water will have exchanged the most heat energy with the environment?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A teacher put one test tube of 50 ⁰C liquid and one test tube of 10 ⁰C liquid into a 20 ⁰C water bath.

Which of the diagrams best represent the direction that heat will move when the test tube are placed into the water bath?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which of the following is the best example of heat transfer by convection?

• A

• B

• C

• D

What method of heat transfer allows the Sun's heat energy to reach Earth through the vacuum of space?

• condensation

• conduction

• convection

• radiation

A metal pot with hot soup in it is placed on a cool stone countertop, as shown in the diagram.

The numbered arrows show the transfer of heat from the pot of soup to the surrounding environment. Which list identifies each method of heat transfer?

• 1-conduction

  2-convection

  3-radiation

• 1-convection

  2-conduction

  3-radiation

• 1-radiation

  2-radiation

  3-convection

• 1-convection

  2-conduction

  3-conduction

A diagram of the electromagnetic spectrum is shown on this picture.

Sunscreen is a lotion used to protect skin from exposure to the Sun. This sunscreen protects a person's skin from wavelength that are.

• longer than radio waves but shorter than x-rays

• longer than x-rays but shorter than infrared waves

• longer than microwaves but shorter than infrared waves

• longer than visible light waves but shorter than radio waves

Tags

NGSS.MS-PS4-2