Last updated on October 4th, 2022 at 12:23 am
Lakhmir Singh Science Class 7 – Heat
Name of Author – Lakhmir Singh And Manjit Singh
Subject – Science / Board – CBSE /ICSE
Lakhmir Singh Science Class 7 Chapter 4 – Heat for CBSE/ICSE Students
Very Short Question & Answers
Give the unit in which temperature is commonly measured.
Degree Celsius
On a Celsius scale, what is the normal body temperature?
37 Degree Celsius
What is the normal temperature range of a laboratory thermometer?
-10 To 100 Degree Celsius
A thermometer is typically made from a liquid.
Mercury
What prevents the mercury level in the glass tube of a clinical thermometer from falling on its own when its bulb is removed from the mouth of a patient?
Kink
Which thermometer has a temperature range of (a) -10°C to 110°C? (b) between 35°C and 42°C?
A-Clinical Thermometer
B-Laboratory Thermometer
On the glass tube of a clinical thermometer are usually two temperature scales. Name these two temperature scales.
Celsius Scale, Farenheight Scale
What is the Fahrenheit range of a clinical thermometer?
94 Degree to 108 Degree Fare height
On a Fahrenheit scale, what is the normal body temperature?
98.6
What is the name of those thermometers that do not use mercury?
Laboratory Thermometer
Identify the thermometer that can automatically record the highest and lowest temperatures for the entire day.
Laboratory Thermometer
There are three ways in which heat can flow (or be transferred).
By Conduction, By Convection and by Radiation
As soon as one end of an iron rod is heated, the other end also becomes hot. Name the process by which heat is transferred in the iron rod.
By Conduction
The process by which a frying pan transfers heat from a gas stove to the food it contains through its bottom.
Conduction
When does the flow of heat from a hot object to a cold object stop?
