Heat Transfer M.C. review

A student observes that an aluminum cup placed close to a burning candle becomes warm to touch. What method of heat transfer is responsible for the warming of the surface of the cup?

• conduction

• convection

• 
  radiation

• sublimation

Joe picks up a piece of metal wire using forceps. He heats the wire over a candle flame until the wire turns red hot. Joe then places the wire on a surface and allows it to cool.

By which process does the metal wire lose its heat to the surrounding air?

• Conduction

• Convection

• Generation

• Radiation

Tags

NGSS.MS-PS3-4

The image shows coffee in a ceramic cup. The enlarged view demonstrates how the molecules in the coffee, ceramic cup, and surrounding air interact to transfer heat.

What method of heat transfer does the model demonstrate?

• Conduction

• Convection

• Emission

• Radiation

Tags

NGSS.MS-PS1-4

An engineer conducts an experiment to study which materials prevent heat transfer. The engineer fills four plastic cups each with 50 mL of water at 55°C and places a thermometer in each cup. The engineer wraps one of four different materials (1, 2, 3, and 4) around each cup and graphs the temperature of the water in each cup every 3 minutes.

Which material minimizes heat transfer?

• Material #1

• Material #2

• Material #3

• Material #4

Tags

NGSS.MS-PS3-3

A chef arranges pieces of chicken on a metal stick and places the metal stick on a wood-fired grill. The chicken begins to heat up and cook.

What methods of heat transfer cause the chicken to cook?

• conduction, convection, and radiation

• conduction, convection, and insulation

• convection and radiation only

• convection and insulation only

A researcher performs an activity to study the transfer of heat. He fills two identical beakers with 200 mL of water each at 20°C. He places both beakers outside, one in the Sun, and the other in the shade. After an hour, the researcher observes the temperatures of the water in the beakers, as shown.

What is most responsible for the increase in water temperature in the beakers?

• Beaker:1 transfer of heat by radiation

  Beaker 2: transfer of heat by convection

• Beaker 1:transfer of heat by conduction

  Beaker 2: transfer of heat by conduction

• Beaker 1: transfer of heat by convection

  Beaker 2: transfer of heat by radiation

• Beaker 1: transfer of radiation

  Beaker 2: transfer of radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4