Heat Transfer

In art class, the students watch a video about creating glass art. Which statement best describes how glass is shaped into a vase?

• Glass is melted and is more flexible to shape.

• Glass is frozen and is more flexible to shape.

• Glass is melted and is less flexible to shape.

• Glass is frozen and is less flexible to shape.

Which is most responsible for the uneven heating of the air in the atmosphere?

• radiation

• convection

• conduction

• condensation

Tags

NGSS.MS-ESS2-6

A metal wire is used in a light bulb to conduct heat until it glows. Which best explains why metal is used?

• Metal heats up quickly.

• Metal conducts sunlight.

• Metal cols down slowly.

People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?

• The heat from the fire travels through the ground and heats the ground around the people.

• The heat from the fire is conducted through air molecules to the people.

• The heat from the fire rises in the air and then settles around the people.

• The heat from the fire radiates from the fire to the people.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS3-4

Sue is building a bike with a metal frame in a warm, sunny area. Which material would be best for Sue to use for the grips on the handlebars so that her hands do not get too hot?

• Silver metal, because silver reflects heat, and metal conducts heats.

• Black metal, because black absorbs heat from the sun, and the metal does not conduct heat.

• White rubber, because white reflects heat, and the rubber does not heat up quickly.

• Black rubber, because black reflects heat from the sun, and rubber does not conduct heat.

What happens to metal railroad tracks during the heat of a summer day?

• decrease in weight

• increase in weight

• decrease in length

• increase in length

Mr. Olivares drinks coffee on his way to work. Today, he poured it into a metal travel mug instead of a paper cup. What will he most likely notice about the temperature of his coffee when he gets to work?

• His coffee will be colder, because the is mug is taller.

• His coffee will still be hot, because the mug is taller.

• His coffee will be colder, because the mug is metallic.

• His coffee will still be hot, because the mug is metallic.

On a hot day in the sun, why does Robert use a foam can holder to keep his drink cool?

• Foam insulates the cold drink.

• Foam reflects cold air from the can.

• Foam reflects heat from the sun off the can.

• Foam conducts heat between the can and the air.

A family living on the top floor of a tall building complains that their home get too hot during the day. Which could they add to the roof to allow their home to stay cooler?

• black metal

• white metal

• black rubber

• white rubber

Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?

• convection

• evaportaion

• radiation

• conduction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4