Quantity of heat, heat capacity Lesson plan

Long-term plan section:

Fundamentals of thermodynamics

School:

Date: ______________

Teacher(s):

Класс: 10

Number of attendees: ______

Absentees: ____

Lesson topic

Quantity of heat, heat capacity

Learning objectives

To use internal energy formulas of the monatomic and diatomic ideal gas in problem solving

Evaluation criteria

- explains the physical meaning of the specific heat;

- applies the formula of the amount of heat obtained or given in the process of heat transfer;

Language goals

Vocabulary and terminology specific to the subject:

convection, thermal conductivity, radiation, Brownian (thermal) motion, the amount of heat

Useful expression (s) for conversations / letters

If (substance) becomes (warmer), (particles) vibrate (stronger).

When (air, liquid) is heated, (particles) move (farther apart).

When (air, liquid) heat up, their density becomes less.

This causes a rise of fluid, air.

When (air, liquid) cool, then their density increases

This causes cold air to (sink) in the less dense fluid

This is called a convection.

Temperature, volume, pressure, isoprocess, isobar, isochore, isotherm

A series of useful phrases for dialogue / writing:

The work of gas…

Work is negative, because ...

Vocabulary and terminology specific to the subject:

Temperature, volume, pressure, isoprocesses, isobar, isochore, isotherm, monoatomic, diatomic, polyhydric, internal energy

A series of useful phrases for dialogue / writing:

The gas of work…

Negative because ...

Instilling values

Development of effective communication skills, respect for classmates

Inter subject

connections

Mathematics (derivation of formulas, graphs)

ICT skills

Search for additional information on the Internet.

Preliminary knowledge

Internal energy

Lesson course

Scheduled Lesson Stages

Scheduled Lesson Activities

Resources

Beginning

5 min.

(W) Oral recitation on the PPT slide on understanding the processes

Repetition of heat transfer methods

The task of boiling water. Students must approach the need to enter a quantity that determines the amount of heat.

So the topic of the lesson

"Quantity of heat, heat capacity "

Goals:

- explain the physical meaning of the specific heat;

- apply the formula of the amount of heat obtained or given in the process of heat transfer

Slides 1-2

3 slide

4-5 slide

Middle

5 min

10 min

17 min

Return to the scheme of change of internal energy. On the basis of it, the designation of the change in the internal energy is introduced and the relationship between the amount of heat and the change in the internal energy of the body is shown.

Definition of quantity: the amount of heat

Q – the amount of heat is the energy that the body gains or loses during heat transfer. [Q] = [J]

Experimental Part

Division of students into 3 groups (m,Δt,c)

(G) Group Work

Task 1. Perform the experiment in groups.

! If there is no equipment, students learn new material on the website http://files.school-collection.edu.ru/dlrstore/669b7976-e921-11dc-95ff-0800200c9a66/1_7.swf

Experimental Task

The explanation of the new material, the synthesis of experiments and the derivation on their basis of the formula for the amount of heat, the introduction of a new quantity - the specific heat.

Teacher’s explanation:

Specific heat of substance with:

1. unit of measurement [ с ] = [J / kg ∙ ⁰ С]
2. It shows how much heat is needed to heat a substance weighing 1 kg per 1⁰С
3. For a given substance, c is a constant value.
4. Different substances have different specific heat

(I) Solving problems (individual)

Task 2. Solve problems individually

6 slide

7 slide

8 slide

http://files.school-collection.edu.ru/dlrstore/669b7976-e921-11dc-95ff-0800200c9a66/1_7.swf

Word document “Instruction card”

Slides 9-14

Word document “Instruction card”

End

3 min.

Reflection on learning objectives:

- explain the physical meaning of the specific heat;

- apply the formula of the amount of heat obtained or given in the process of heat transfer

Homework: finish solving problems that haven’t been solved during the lesson

Differentiation - how do you plan to provide more support? What tasks do you plan to set for more capable students?

Grading - How do you plan to check students' level of learning?

Health & Safety

I plan to support them through a general discussion of the results of working with text with Internet sources, suggested text questions, and individual counseling.

Pairing, individual counseling

Creating a favorable psychological atmosphere, the compliance of tasks to the level of preparedness of students, the change of activities, counseling.

What tasks do you plan to set for more capable students?

Providing advice to students who have difficulty

Students will:

Most students will:

Some learners will be:

- explains the physical meaning of the specific heat;

- applies the formula of the amount of heat obtained or given in the process of heat transfer;

Lesson Reflexion

Use this section to reflect on the lesson. Answer the most important questions about your lesson from the left column.

Were the objectives of the lesson / learning objectives realistic?

Have all students reached the DH?

If not, why not?

Is the differentiation correct in the lesson?

Have the lesson temporal stages been sustained?

What were the deviations from the lesson plan and why?

Overall rating

What are two aspects of the lesson that went well (think about both teaching and learning)?

1:

2:

What could contribute to improving the lesson (think about both teaching and learning)?

1:

2:

What did I find out during the lesson about the class or the achievements / difficulties of individual students, what should I look for in subsequent lessons?