Heat Transfer

the transfer of heat in a fluid (gas or liquid) by means of up & down movements called convection currents

• conduction

• convection

• radiation

the transfer of heat through a vacuum (empty space)

• conduction

• convection

• radiation

the transfer of heat through a medium (material) by direct contact of molecules

• conduction

• convection

• radiation

How does heat move?

• from cold to hot

• from hot to cold

Tags

NGSS.MS-PS1-4

You are in science class and want to see if the hot plates were used recently. You place your hand near the side of the hot plate. Without touching the hot plate, your hand feels warmer. Heat is transferred to your hand by _?_.

• conduction

• convection

• radiation

You are roasting marshmallows at a campfire. The metal skewer (stick) that you’re cooking your marshmallow on burns your hand because of _?_.

• conduction
• convection
• radiation

In heat transfer, heat always flows from the _?_ substance to the _?_ substance.

• hotter to colder

• colder to hotter

• hotter to hotter

• colder to colder

Tags

NGSS.MS-PS1-4

Which of the following is the best example of conduction?

• A light bulb warming a lampshade
• An egg cooking in a frying pan
• Water boiling in a pot
• Gases circulating in the atmosphere

Tags

NGSS.MS-PS3-3

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. This is an example of _?_.

• conduction

• convection

• radiation

A group of friends gather around a fire to stay warm. This is an example of _?_.

• conduction

• convection

• radiation