Review of : Heat, Temperature & Thermal Energy. Heat Heat is a _______ of energy from objects at a _________ temperature to objects at a __________ temperature.

Review of :Review of :Heat, Temperature & Heat, Temperature &

Thermal EnergyThermal Energy

HeatHeat

Heat is a _______ of energy from objects at a _________ temperature to objects at a __________ temperature.

Soon after you put ice cubes into a pitcher of lemonade, energy is transferred from the warmer _________ to the colder ____.

flowhigher

lower

lemonadeice

HEAT FLOWS FROM WARMER COOLER!!!

TemperatureTemperature

Temperature is a measure of the __________ kinetic energy of all the particles in an object.

If a liquid, such as hot cocoa, has a high temperature, the particles in the liquid are moving __________, and have a _______ average kinetic energy.

If a drink, such as a fruit smoothie, has a low temperature, the particles in the liquid are moving _________ and have a _______ kinetic energy

average

Very fast high

More slowlylow

Thermal EnergyThermal EnergyThermal energy is the _______ kinetic

energy of particles in an object.Note that temperature and thermal

energy are different from each other. Temperature is an __________ while thermal energy is a ______.

A glass of water may have the same temperature as the Mississippi River, but will have _____ thermal energy because there are less water particles in the glass of water.

total

averagetotal

less

Review of Review of Conduction, Convection, Conduction, Convection,

and Radiationand Radiation

ConductionConductionConduction is the process that moves

energy from one object to another when they are _______________.

Conduction occurs any time that objects at a _________ temperature come into contact with each other.

Conduction can also occur within a single object. In this case, energy is transferred from the ______ part of the object to the _______ part of the object.

Touching physically

different

warmercooler

ConvectionConvectionConvection is the process that transfers

energy by the movement of particles in the same direction in a _________ or ____.

Cool air/water that is _____ dense will push warmer, _____ dense, air/water upwards. Once that warm air/water cools, it becomes _____ dense once again and settles back down to the bottom to start the process all over again.

liquidgas

moreless

more

RadiationRadiationRadiation is energy that travels as

______________ waves, which includes visible light and microwaves.

The ____ is the most significant source of radiation that you experience on a daily basis.

Like both conduction and convection, radiation can transfer energy from a ______ object to a _______ one.

However, radiation differs from conduction and convection because radiation can travel through ______________, as it does when it moves from the Sun to the Earth.

electromagnetic

Sun

warmercooler

Empty space

Quiz Practice!Quiz Practice!

A hot saucepan is placed on a cold bench. Heat will flow from the saucepan to the bench until

A. the bench is warmer than the saucepan.

B. the bench is as hot as the saucepan was.

C. the saucepan has lost all of its heat.D. the saucepan and bench are at the

same temperature.

A candle is lit. The heat of the flame will melt the candle because

A. the heat of the hot flame is transferred to the colder candle.

B. the wax of the candle is repelled by the flame.

C. the candle must stay hot to heat the flame.

D. the flame takes all the heat energy and the candle has no energy.

Which types of heat transfer involve heat flow from hot objects to colder objects?

A. convection, conduction, and radiationB. conduction and radiation, but not

convectionC. convection and conduction, but not

radiationD. convection and radiation, but not

conduction

Heat will flow from a hot object to a cold object until the objects reach

A. Boiling point.B. stability.C. collapse.D. The same temperature.

Ice is placed in hot water. What happens to the temperature of the ice and the water?

A. The ice gets warmer, and the water gets cooler.

B. The ice gets warmer, and the water stays the same.

C. The ice and the water both get cooler.

D. The ice gets cooler, and the water gets warmer.

When you hold a cup of warm water, your hands get warmer. Why does this happen?

A. Heat transfers by convectionB. Heat transfers by conductionC. Heat transfers by condensationD. Heat transfers by radiation

The total energy of all particles in a substance is called –

A.TemperatureB.Thermal energyC.Degrees D.Mass

Heat flows –

A.Only from warmer objects to cooler onesB.Only from cooler objects to warmer onesC.Both ways between objects that are not at

the same temperatureD.Between all objects all the time regardless

of their temperature

Heat is transferred from one particle of matter to another through the movement of fluids in a process called –

A.ConductionB.ConvectionC.RadiationD.Insulation

Which kind of heat transfer takes place when you put a spoon in a cup of soup and the spoon gets hot to the touch

A.ConvectionB.ConductionC.DeductionD.Radiation

Which kind of heat transfer can occur through space

A.RadiationB.ConductionC.ConvectionD.Deduction

Which kind of heat transfer occurs when you add hot water to a cold bath?

A.RadiationB.ConductionC.DeductionD.Convection

It is a cold winter day. You’ve been out playing, and you warm you hands in front of the fire in your fire place. Which kind of heat transfer is this?

A.ConductionB.DeductionC.RadiationD.Convection