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Transfer of Heat - Konduksi, Konveksi & Radiasi Kelas 7

Bab Panas Kelas 7 Sains

Барлық деңгейлер • 6 Дәрістер • Өмір бойы қол жеткізу
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Transfer of Heat - Konduksi, Konveksi & Radiasi Kelas 7
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Нұсқаушымен танысыңыз: Prabh Kirpa Classes

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Жалпы мазмұн

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P.1. Nyatakan persamaan dan perbedaan antara termometer laboratorium dan termometer klinis.
P.2. Berikan dua contoh masing-masing konduktor dan insulator panas.
P.3. Isi tempat kosong : (a) Kepanasan suatu objek ditentukan oleh __________. (b) Suhu air mendidih tidak dapat diukur dengan termometer _____________ t
(d) Tidak ada medium yang diperlukan untuk transfer panas melalui proses __________.

Курстың мазмұны

6 бөлімдер • 6 дәрістер • 01:04:21 жалпы ұзындығы

Introduction

01:37
In this course, we will discuss various aspects relating to “Heat” including the following:
  1. Is our sense of touch reliable to decide whether an object is hot or cold?
  1. What is clinical thermometer and how can we read a thermometer?
  1. Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?
  1. Is the body temperature of every person 37°C?
  1. What is laboratory thermometer? For which purpose, it is used?
  1. What are the three modes of transfer of heat?
  1. Discuss the process of conduction, convection and radiation with examples.
  1. How does the heat travel in air?
  1. Write a note on Sea Breeze and Land Breeze.
  1. How does the heat from sun reach us?
  1. Is it possible to construct buildings that are not affected much by heat and cold outside?
+ 11 NCERT Questions with Answers

Heat chapter explained

43:40
  1. Is our sense of touch reliable to decide whether an object is hot or cold?
  1. What is clinical thermometer and how can we read a thermometer?
  1. Why does the mercury not fall or rise in a clinical thermometer when taken out of the mouth?
  1. Is the body temperature of every person 37°C?
  1. What is laboratory thermometer? For which purpose, it is used?
  1. What are the three modes of transfer of heat?
  1. Discuss the process of conduction, convection and radiation with examples.
  1. How does the heat travel in air?
  1. Write a note on Sea Breeze and Land Breeze.
  1. How does the heat from sun reach us?
  1. Is it possible to construct buildings that are not affected much by heat and cold outside?

Q.1. State similarities and differences between the laboratory thermometer and t

04:21

Q.1. State similarities and differences between the laboratory thermometer and the clinical thermometer.

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Students interested in Chapter - Heat

Бұл курс туралы

P.1. Nyatakan persamaan dan perbedaan antara termometer laboratorium dan termometer klinis.

P.2. Berikan dua contoh masing-masing konduktor dan insulator panas.

P.3. Isi tempat kosong :

(a) Kepanasan suatu objek ditentukan oleh ________.

(b) Suhu air mendidih tidak dapat diukur dengan termometer _________.

(c) Suhu diukur dalam derajat __________.

(d) Tidak ada medium yang diperlukan untuk transfer panas melalui proses ______.

(e) Sendok baja dingin direndam dalam cangkir susu panas. Panas ditransfer ke ujung lainnya melalui proses __________.

(f) Pakaian warna ____________ menyerap panas lebih baik daripada pakaian warna terang.

P. 4. Cocokkan berikut ini :

(i) Land breeze bertiup selama     (a) musim panas

(ii) Sea breeze bertiup selama     (b) musim dingin

(iii) Pakaian berwarna gelap lebih disukai selama  (c) siang hari

(iv) Pakaian berwarna terang lebih disukai selama  (d) malam hari

P.5. Diskusikan mengapa mengenakan lebih banyak lapisan pakaian selama musim dingin membuat kita lebih hangat daripada mengenakan hanya satu pakaian tebal.

P.6. Lihat Gambar.4.13  Tandai di mana panas ditransfer melalui konduksi, konveksi, dan radiasi.

P.7. Di tempat beriklim panas, disarankan agar dinding luar rumah dicat putih. Jelaskan.

P.8. Satu liter air pada 30°C dicampur dengan satu liter air pada 50°C. Suhu campuran akan

P.9. Bola besi pada 40°C dijatuhkan dalam cangkir yang mengandung air pada 40°C. Panas akan

(a) mengalir dari bola besi ke air.

(b) tidak mengalir dari bola besi ke air atau dari air ke bola besi.

(c) mengalir dari air ke bola besi.

(d) meningkatkan suhu keduanya.

P.10. Sendok kayu direndam dalam cangkir es krim. Ujung lainnya

(a) menjadi dingin melalui proses konduksi.

(b) menjadi dingin melalui proses konveksi.

(c) menjadi dingin melalui proses radiasi.

(d) tidak menjadi dingin.

P.11. Panci stainless steel biasanya dilengkapi dengan bagian bawah tembaga. Alasannya bisa karena

(a) bagian bawah tembaga membuat panci lebih tahan lama.

(b) panci tersebut terlihat berwarna-warni.

(c) tembaga adalah konduktor panas yang lebih baik daripada stainless steel.

(d) tembaga lebih mudah dibersihkan daripada stainless steel.

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Prabh Kirpa Classes
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Prabh Kirpa Classes
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This channel is purely education based. Our aim is to ensure that the students are able to understand each and every question in an easy way. We take pride in providing quality educational services to the students of Class VII to Class XI Science NCERT, English, Computer solutions, Mathematics, Business Studies & Economics. Our goal is to help the leaders of tomorrow to learn to succeed today....

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