Exploring Heat Transfer Processes

What is the primary process by which heat energy is transferred?

• All of the above

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-PS1-4

Which key word is associated with conduction?

• Motion

• Waves

• Contact

• Density

What happens to the molecules in a spoon when it is heated?

• They stop moving

• They dissolve

• They expand and contract

• They transfer vibrational energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What is the role of molecular contact in conduction?

• It is irrelevant

• It initiates energy transfer

• It decreases energy transfer

• It stabilizes the temperature

Tags

NGSS.MS-PS3-3

What causes convection currents in fluids?

• Molecular bonding

• Temperature stability

• Density differences

• Pressure differences

Tags

NGSS.MS-ESS2-6

Which everyday phenomenon is an example of convection?

• Burning of wood

• Melting of ice

• Rising of hot air

• Freezing of water

Tags

NGSS.MS-ESS2-6

What is a common example of convection observed near a campfire?

• Light flickering

• Heat spreading

• Wood burning

• Smoke rising

Tags

NGSS.MS-ESS2-6

Which device operates on the principle of convection?

• Refrigerator

• Lava lamp

• Microwave oven

• Solar panel

Tags

NGSS.MS-PS3-3

How does radiation differ from conduction and convection?

• It requires a medium

• It only occurs in liquids

• It involves direct contact

• It transfers energy in waves

Tags

NGSS.MS-PS4-2

Which example illustrates radiation?

• Sunlight reaching Earth

• Heating a spoon

• Water boiling in a pot

• Air rising above a heater