A student wanted to test the thermal conductivity of various metals using wax, a Bunsen burner, and the apparatus as shown in the diagram above. Based upon the results shown, which metal conducts thermal energy the best?

• aluminum

• nickel

• iron

• copper

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which example best demonstrates the process of conduction?

• A piece of paper is torn in half

• Heated air rises above a lit candle

• A metal spoon gets warm when used to stir hot soup

• Sunlight shining through a window

In which substance listed below will the process of convection work?

• Air

• Water

• Both Air and Water

• Neither Air nor Water

Tags

NGSS.MS-ESS2-6

Which of the following statements describes an advantage of using a wooden spoon instead of a metal spoon to stir a pot of hot soup?

• A wooden spoon radiates heat faster than a metal spoon.

• A wooden spoon has a lower specific heat than a metal spoon.

• A wooden spoon does not conduct heat to its handle as quickly as a metal spoon.

• A wooden spoon lowers the boiling point of the soup, but a metal spoon does not.

Tags

NGSS.MS-PS3-3

Which of the following statements best explains how heat flows by convection?

• A large mass of warm air becomes less dense, allowing to rise above cooler air

• Energy is transferred by electromagnetic waves

• Energy is transferred by from molecule to molecule by contact

• A large volume of water is heated

Tags

NGSS.MS-ESS2-6

The picture above represents the same type of liquid with different amounts in each container. All of the liquids are at the same temperature of 20 °C. Which container has the lowest thermal energy?

• Container A

• Container B

• Container C

• All containers have the same thermal energy

Tags

NGSS.MS-PS1-4

The diagram above shows a Bunsen burner heating a beaker of water on a beaker stand. The arrows represent the transfer of heat energy in the water. Which process is primarily responsible for the transfer of heat indicated by the arrows in the beaker of water?

• conduction

• convection

• radiation

• insulation

Tags

NGSS.MS-PS3-4

A copper bar is placed in a flame, as shown above, and is heated until the end glows. The other end of the copper bar soon becomes hot, too. Which of the following statements best describes what happens?

• Energy flows by convection inside the copper bar

• Energy is conducted from atom to atom along the length of the copper bar

• Radiation moves through the copper bar and is absorbed by the end not in the flame

• Air heated by the flame radiates down the copper bar and heats the end not in the flame

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

As you heat air what happens to the particles?

• The particles get bigger and the warm air rises

• The particles spread out and the warm air rises

• The particles shrink and the warm air falls

• The particles get closer together and the warm air falls

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A cup of tea with a temperature of 80°C is placed on a table in a 20°C room. What happens to the thermal energy and molecular motion of the tea when it is left to cool on the table?

• The thermal energy increases and the molecules move faster

• The thermal energy decreases and the molecules move faster

• The thermal energy increases and the molecules move more slowly

• The thermal energy decreases and the molecules move more slowly

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4