Lakhmir Singh and Manjit Kaur Solutions for Chapter: Heat, Exercise 3: Long Answer Type Questions
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Heat, Exercise 3: Long Answer Type Questions
Attempt the practice questions on Chapter 4: Heat, Exercise 3: Long Answer Type Questions with hints and solutions to strengthen your understanding. AWARENESS SCIENCE for Seventh Class solutions are prepared by Experienced Embibe Experts.
Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Heat, Exercise 3: Long Answer Type Questions with Hints & Solutions
Explain how all the air in a room gets heated when a room heater kept on the floor in a corner of the room is switched on. Draw a labelled diagram to illustrate your answer.
Why do people prefer to wear white clothes in summer?
Why is it better to wear dark clothes in winter?
What is a thermometer? Name the thermometer used by doctors and nurses to measure the temperature of human body.
Can we use a laboratory thermometer to measure human body temperature? Give reason for your answer.
In places of hot climate, it is advised that the outer walls of houses be painted white. Why?
What is meant by 'convection'? Explain with the help of an example. Why is it that convection cannot take place in solids?
Define radiation. Give any two examples where heat is transferred by radiation. What is the name of invisible heat rays which transfer heat by radiation?
