Thermal Energy

A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of—

• convection
• conduction
• vaporization
• radiation

A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of—

• convection
• conduction
• vaporization
• radiation

what is conduction?

• direct touch
• air or liquids
• heat waves/ light waves
• drinking hot coffee

Tags

NGSS.MS-PS3-3

what is convection

• direct touch
• air or liquids
• heat waves or light waves
• sunbathing outside

Tags

NGSS.MS-ESS2-6

what is radiation?

• direct touch
• air or liquids
• heat waves/ light waves
• touching the cookies out of the oven

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

How do molecules at warm temperatures differ from molecules at cool temperatures? 

• a.  At warm temperatures, molecules move around more
• b.  At warm temperatures, molecules grow in siz
• c.  At warm temperatures, molecules exchange electrons more easil
• d.  At warm temperatures, molecules combine with each other more easil

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Thermal energy is transferred from————-

• A cooler object to a hotter one

• A hotter object to a cooler one

Tags

NGSS.MS-PS3-3

When particles are heated they begin to ____.

• move faster

• mover slower

• move up

• jump out of the pot

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In an ocean, warm water moves __________ and cold water moves ____________.

• Down, Up
• Up, Down

Tags

NGSS.MS-ESS2-6

Conduction can only occur between two objects when –

• one object is less dense than the other.
• both objects are in physical contact with each other.
• one of the objects is made of a metal.
• both objects are exactly the same temperature.