Heat (Unit 2) Retest

Which best illustrates the transfer of energy from warmer objects to cooler objects using convection?

• A.

• B.

• C.

• D.

Tags

NGSS.MS-ESS2-6

The image below shows a Bunsen burner and a handheld metal rod. What will happen to the heat?

• The heat will circulate back and forth between the burner and the rod.

• The heat will be transferred and conducted to the opposite end of the metal rod.

• The heat will change colors when the flame goes out.

• The heat will be reabsorbed by the Bunsen burner.

Tags

NGSS.MS-PS1-4

The image below shows the sun and Earth. How is the heat being transferred?

• conduction

• radiation

• convection

• evaporation

Tags

NGSS.MS-PS3-4

The chart shown appears in a catalog of camping equipment. The difference between the Arctic sleeping bag and the Rugged sleeping bag is MOST likely that the Arctic sleeping bag is

• designed to last longer.

• designed for home use as well as camping.

• made of material that provides better cushion.

• made of material that insulates better.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which material would make the best spoon for stirring something hot during the cooking process?

• silver

• aluminum

• wood

• copper

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Two metal containers full of ice are on a table. Alicia wraps one container with layers of cloth. She does not wrap the other container. What MOST likely happens?

• Ice melts at the same time in both containers.

• Ice melts faster in the unwrapped container.

• Ice melts faster in the wrapped container.

• Ice melts in the unwrapped container but not in the wrapped container.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS1-4

A boy holds his hand over a lighted electric bulb, not touching the bulb, and his hand feels the heat. Which kind of thermal energy transfer is this?

• convection

• radiation

• conduction

• insulation

What can be concluded from the following statements about a property of metals? • A cast-iron skillet on a stove is used to fry bacon. • A metal spoon left in a pot of soup heating on a stove is too hot to touch. • An aluminum playground slide gets hot on a summer day.

• Metals combine with nonmetals

• Metals conduct electricity.

• Metals conduct heat.

• Metals are good insulators.

Which physical property is important to have in a material used in cookware?

• good conductor of heat

• poor conductor of heat

• high flexibility

• low flexibility

Tags

NGSS.MS-PS3-3

Which transfer of heat energy requires no contact between the heat source and the heated object?

• conduction

• convection

• radiation

• reflection

Tags

NGSS.MS-PS2-5