Target TimeTarget Time1. What is the zero point in the Celsius

scale?a.) the freezing point of pure waterb.) the boiling point of pure waterc.) the freezing point of mercury d.) the boiling point alcohol

2. The total kinetic energy of particles in an object is

a.) heatb.) thermal energy c.) calories d.) temperature

QuizQuiz

You will need:

-Paper -Pencil-AR Books

**Do not write on the quiz.**

Schedule ChangesSchedule Changes

Today: Heat

-Convection-Conduction -Radiation

ReviewReviewKinetic theory of matterTemperatureDegrees ThermometerThermal Energy

EQ: What can cause change EQ: What can cause change in temperature? in temperature?

Key Questions:1. How is energy transferred

through heat?

2. What are the similarities and differences among conduction, convention, and radiation?

Guided NotesGuided NotesYou will need:-One sheet of paper-Pencil

Paper Title: The transfer of energy as heat can be

controlled.

Energy moves heat in 3 Energy moves heat in 3 ways.ways.

1. Conduction 2. Convection

3. Radiation

What is conduction?What is conduction?

Conduction is the process by which energy moves from a warmer object to a cooler object when the objects are touching.

Conduction Example a:Conduction Example a:

Energy moves from a warmer object to cooler object when the objects are touching.

Conduction Example b:Conduction Example b:

Energy moves from a warmer object to cooler object when the objects are touching.

Conduction Example c:Conduction Example c:

Energy moves from a warmer object to cooler object when the objects are touching.

What is convection?What is convection?

Convection is a process by which energy is transferred in gases and liquids; occurs when a warmer, less dense area of gas or liquid is pushed up by cooler, more dense area of the gas or liquid.

ConvectionConvectionLarge bodies of water, such as Lake Michigan, influence the temperature of the land near by. During the spring and early summer, the lake is cool and warms more slowly than land. The air above the land gets warmer than the air over the water. The warmer air is pushed above the land is less dense than the cooler air above the water. The cooler, denser air moves onshore and pushed the warmer air up. The result is a cooling breeze from the lake. Convection Example

a:

ConvectionConvection

1. Warmer, less dense air is

pushed up by cooler, denser air.

2. As the air cools, it becomes more dense and starts

to sink.

3. Sinking air moves under warmer air pushing it upward.The warm ground transfers

energy to the air by conduction.

Where is the cycle of air more dense? Less dense?

Convection Example b:Convection Example b:

Convection Example c:Convection Example c:

What is radiation? What is radiation?

Radiation is the transfer of energy across distances in the form of electromagnetic waves.

Radiation Example a: Radiation Example a: How does radiation transfer energy?

-When electromagnetic waves strike an object, they transfer energy to the object.

Radiation Example b:Radiation Example b:

Radiation Example c:Radiation Example c:

Conduction, Convection, and Conduction, Convection, and Radiation Radiation

Video Video

Class work