Introduction to Heat Transfer

A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of

• Convection

• Conduction

• Radiation

A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to

• Convection

• Conduction

• Radiation

Tags

NGSS.MS-PS1-4

Near the ceiling of a room the air is warmer. The warm air rises because of

• Convection

• Conduction

• Radiation

The type of heat transfer that happens through direct contact of molecules or particles with each other is ___________________.

• Convection

• Conduction

• Radiation

• insulation.

What role does thermal energy play in the process of convection?

• It causes fluids to decrease in density and rise.

• It increases the conductivity of materials.

• It is not involved in the process of convection.

• It prevents the movement of heat.

Heat transfers from an area of (a)   temperature to an area of (b)   temperature.

• high to low

• low to high

• high to high

Tags

NGSS.MS-PS3-4

Match the following scenarios with the correct method of heat transfer.

• Heat from the sun warming your face

• Conduction

• Warm air rising from a heater and circulating in a room

• Convection

• Heat traveling through a metal rod when one end is heated

• Radiation

Which material would be the best conductor of thermal energy?

• Plastic

• Wood

• Metal

• Glass

Tags

NGSS.MS-PS3-3

Match the following methods of heat transfer with the scenarios.

• Touching a hot pan

• conduction

• Feeling the warmth of the fire from a distance

• radiation

• Warm air rising above a fire

• convection

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Heat Lamps (a)  

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-PS3-3