Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

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Mr. Smet’s Scientific Studies HEAT TRANSFER OBJECTIVES 5.5.1, 5.5.2, AND 5.5.3

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Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3. Mr. Smet’s Scientific Studies. Do Now. Place your homework on the table in front of you. On a sheet of paper: What are the three types of heat transfer and what are their definitions?. 3 types of heat transfer:. Conduction - PowerPoint PPT Presentation

Transcript of Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Page 1: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Mr. Smet’s Scientific Studies

HEAT TRANSFEROBJECTIVES 5.5.1,

5.5.2, AND 5.5.3

Page 2: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Place your homework on the table in front of you.

On a sheet of paper:What are the three types of heat transfer and what are their definitions?

DO NOW

Page 3: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

ConductionHeat transfers through direct contact between particles.

RadiationHeat transfers through waves.

ConvectionHeat transfers through liquids and gases by moving particles.

3 TYPES OF HEAT TRANSFER:

Page 4: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

1. Do Now2. Introduction3. Review4. Activity 15. Activity 26. Exit Slip7. Closing

AGENDA

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ReviewActivitiesExit Slip

TODAY

Page 6: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

5.5.1 SWBAT define the three major heat energy transfers: Conduction, Convection, and

Radiation.5.5.2 SWBAT classify

situations as one of the major heat energy transfers.

5.5.3 SWBAT illustrate the three major heat energy

transfers.

OBJECTIVES

Page 7: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

1. Do Now2. Introduction3. Review4. Activity 15. Activity 26. Exit Slip7. Closing

AGENDA

Page 8: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3
Page 9: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Heat transfers through direct contact between particles.

This only happens when two objects are touching.

The heat energy moves from high (hotter temperatures) to low (colder temperatures).

CONDUCTION

Page 10: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

This is drawn as an arrow moving from the hotter object to the colder object.

CONDUCTION

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Page 12: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Heat transfers through waves.

This sends heat in all directions through waves.

When seen, radiation often looks like light.Think: The sun!!!

RADIATION

Page 13: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Radiation is drawn as a wave ending in an arrow in the direction of the movement of heat energy.

RADIATION

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Page 15: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

Heat transfers through liquids and gases by moving particles.

Hot liquids and gases move up while cold liquids and gases sink, creating a circle.

CONVECTION

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This is drawn as a circle with hot in one lower corner rising and cold in the opposite top corner sinking.

CONVECTION

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CHECKS FOR UNDERSTANDING

Page 18: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

1. Do Now2. Introduction3. Review4. Activity 15. Activity 26. Exit Slip7. Closing

AGENDA

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Big Question:Which material

(spoon, stick) in a cup of hot or cold water will melt the

fastest?

ACTIVITY 1INTRODUCTION

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2 Metal spoonsTimerPlastic knife¼ inch margarine4 ThumbtacksWax paper2 Styrofoam CupsMarker

ACTIVITY 1MATERIALS

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1. With a Sharpie marker, label one Styrofoam cup hot and the other cup cold.2. Place the 2 spoons and 2 popsicle sticks side-by-side on the wax paper.3. Take the 1/4 inch slice of butter and place it on the wax paper, away from the spoons and popsicle sticks.4. Take the plastic knife and cut the 1/4 inch square cold slice of butter into 4 equal parts.

ACTIVITY 1PROCEDURE

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5. Put the 4 equal parts of butter each on:

the end of the metal spoonsthe end of the popsicle sticks

6. Place 1 spoon and 1 Popsicle stick into both of the Styrofoam cups.7. Place a thumbtack into the center of each of the 4 pieces of butter.

ACTIVITY 1PROCEDURE

Page 23: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

8. Obtain 500 ml of hot water, as the teacher directs, and pour the hot water into the Styrofoam cup labeled hot.9. At the same time, obtain 500 ml of cold water, as the teacher directs, and pour the cold water into the Styrofoam cup labeled cold.

ACTIVITY 1PROCEDURE

Page 24: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

10. Start the timer. Measure the time it takes for each thumbtack to fall from its spoon, knife or stirring rod, etc. There will be 4 readings to enter in a data table. (2 for hot, 2 for cold). The table is on the backside of this paper.11. Touch the 4 materials and rate them as to which feels the coolest to hottest, after the thumbtack has fallen off. Write this on the backside of this paper

ACTIVITY 1PROCEDURE

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When you have completed the activity, follow the Cleanup Procedure and begin working on the analysis questions on the backside of the page.

ACTIVITY 1PROCEDURE

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Throw away the butter and wax paperPour the water into an empty sink in

the back of the room.Place the silverware into the container

on the table in the back of the room.Place the thumbtacks in the cup in the

back of the room.Neatly stack the Styrofoam cups on the

back table.

ACTIVITY 1CLEANUP PROCEDURE

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1. Follow all procedures the first time.

2. Do not play around with the equipment.

3. You should only be out of your seat when either:

1. Getting your equipment2. Cleaning up from the activity

4. When completed, cleanup immediately and begin working on the analysis questions.

EXPECTATIONS

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1. Do Now2. Introduction3. Review4. Activity 15. Activity 26. Exit Slip7. Closing

AGENDA

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Big Question:Will the temperature

of dirt be greater under a 40-watt light

bulb or when not under a lamp?

ACTIVITY 2INTRODUCTION

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Soil2 Styrofoam bowls2 Thermometers1 lamp with 200-watt bulb1 Timer2 Manila Folders

ACTIVITY 2MATERIALS

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1. Setup the manila folders like a “wall.”2. Place one bowl on one side of the manila folders and one on the other.3. Place one thermometer into each of the dirt piles so that the tip is just below the surface. You do not want it going all the way to the bottom.

ACTIVITY 2PROCEDURE

Page 32: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

4. Place the light so that it is shining directly onto one of the bowls of dirt. Do not yet turn it on.5. Record the temperatures of both of the bowls on the other side of this page. Notice that there are four tables: 2 each for each of the bowls. Write the temperatures down under the correct light source (none or lamp) and correct cycle (heating cycle) under Start Temperature. Also, write down the time on the wall clock.

ACTIVITY 2PROCEDURE

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6. Turn on the lamp and start the timer.7. For the next ten minutes, record the temperature of the dirt piles. Be sure that you record both bowls each minute and write down the temperature in the correct table.

ACTIVITY 2PROCEDURE

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8. After ten minutes, after you have written down the temperature under ten minutes for the Heating Cycle in both, turn off the lamp.9. Immediately, write down the temperature under the Start Temp. For Cooling Cycle for both bowls. Also, write down the Start Time.

ACTIVITY 2PROCEDURE

Page 35: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

10. Restart the watch.11. Again, write down the temperature of both piles of dirt each minute for the next ten minutes.

ACTIVITY 2PROCEDURE

Page 36: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

When you have completed the activity, follow the Cleanup Procedure and begin working on the analysis questions on the backside of the page.

ACTIVITY 2PROCEDURE

Page 37: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

When completed, remove the thermometer and place this in the cup on the rear table.

Walk to the trash and pour out the dirt from the bowls.

Place the bowls on the back table in a neat stack.

Wipe off and throw away and dirt remaining on the lab table.

Answer the analysis questions on the back of this paper.

ACTIVITY 2CLEANUP PROCEDURE

Page 38: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

1. Follow all procedures the first time.

2. Do not play around with the equipment.

3. You should only be out of your seat when either:

1. Getting your equipment2. Cleaning up from the activity

4. When completed, cleanup immediately and begin working on the analysis questions.

EXPECTATIONS

Page 39: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

1. Do Now2. Introduction3. Review4. Activity 15. Activity 26. Exit Slip7. Closing

AGENDA

Page 40: Heat Transfer Objectives 5.5.1, 5.5.2, and 5.5.3

5.5.1 SWBAT define the three major heat energy transfers: Conduction, Convection, and

Radiation.5.5.2 SWBAT classify

situations as one of the major heat energy transfers.

5.5.3 SWBAT illustrate the three major heat energy

transfers.

OBJECTIVES


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