Heat Transfer

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Thermal energy moves from warm areas to cold areas until the temperature is equal

a heater pumps heat into a cold room and then shuts off once the entire room has reached a certain temperature

a thermometer heats up when immersed in a hot liquid

conduction

an egg is fried in a pan

conduction

cooling down your hand with ice cubes

conduction

the handle of a pot on a stove gets too hot to pick up

conduction

touching a hot plate

conduction

your feet hurt from walking barefoot across a blacktop parking lot

conduction

Ice in a soft drink melts due to

conduction and convection

Macaroni noodles move in bowling water because of

convection

bubbles of gas rise up from the bottom of a pot of boiling water

convection

heating a hot air balloon

convection

rising and falling rice in boiling water

convection

the flames of a fire rise upward

convection

the furnace in a home heats up and circulates air

convection

the soup inside a pot is cooked throughout

convection

warm, moist air rises upward near the equator

convection

Heat is a from of ______________

energy

When two objects reach the same temperature

equilibrium

If a metal spoon is used to stir hot chocolate, the spoon's temperature would rise because the heat energy from the

hot chocolate would travel up the spoon through conduction

Heat always flows in the same direction; from _________ to ___________

hot to cold

All____________ has heat

matter

Convection

most of the energy the atmosphere moves this way

conduction

occurs by direct contact between solids, liquids, and gases

As heat leaves the glowing flames in the stove, it travels through empty space by

radiation

The moon's surface is heated by the sun

radiation

a person uses heating lamp to dry off after a shower

radiation

although you do not touch the flames, your chest falls warm while you are sitting in front of a fireplace

radiation

cooking food in a microwave

radiation

cooking marshmallows over a fire without touching flames

radiation

heating a greenhouse

radiation

on a hot summer day, you close all the blinds and curtains in your home and notice it is cooler than with the blinds and curtain open

radiation

the blacktop parking lot gets hot during a sunny day

radiation

the gets warm from an open fire in the fireplace

radiation

you are warmed while lying on a blanket at the beach

radiation

Heat transfer will stop once two objects reach the same _______________________.

temperature

A metal pot was used to boil water on a stove. The cook picked up the pot by the handles and got burned. Why did the cook get burned?

the metal conducted heat to the cook's hand

Because particles of an object are always moving, heat _________________ is always happening.

transfer

An example of convection

turning on a lava lamp

energy caused by particles that _________________

vibrate

What causes convection currents in the atmosphere?

warm air rising and cold air sinking

the faster the particles vibrate, the _________________ the object will be

warmer

radiation

Does not need matter to transfer heat


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