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To know if the object is hot or cold and the degree of its hotness, we will be studying this chapter. The measure of the intensity of heat present in a substance is called temperature. It is measured with the use of a device called a thermometer. There are two types of thermometers, viz. Laboratory thermometer and clinical thermometer.
11.2. 11.3. Introduction Temperature and heat Measurement of. Temperature is a measure of ‘hotness’ of a body. A kettle with boiling water is hotter than a box containing ice. In physics, we need to define the notion of heat, temperature, etc., more carefully. In this chapter, you will learn what heat. 11.4.
Jun 4, 2019 · Heat Class 7 Science Extra Questions Short Answer Type. Question 1. The handle of a pressure cooker is covered with the thick plastic. Explain why. Answer: As we know that plastic is a bad conductor of heat due to which the heat from the cooker does not flow to its handle and we can hold it easily.
Oct 18, 2023 · Explore NCERT Solutions for Class 7 Science Chapter 4 – Heat, with step-by-step answers to textbook exercises. These solutions simplify complex concepts, making them easy to understand for Class 7 students. With clear explanations and a focus on exam preparation, students can grasp essential topics like conduction, convection, and radiation, ensuring a strong foundation in science.
Jun 18, 2021 · NCERT Solutions for Class 7 Science Chapter 4 will improve your awareness skills sharply and you can easily memorize more things precisely. In the examinations, you will can come up with better answers and lay out the main point effectively. NCERT Solutions is an effective method for learning since you can be le to learn a lot within a short time.
Jan 4, 2024 · 3.Celsius Degree is used to measure temperature. 4.Radiation requires no medium for heat transfer for the process. 5.An ice-cold steel fork is dipped into a mug of hot water. Transfer of heat to the other end is by the process of conduction. 6.Dark Color clothes absorb heat better than clothes of light colors.
