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SAI International School
Class VII
Home Assignment

Subject: Physics
Ch-Heat and temperature
Subtopic: Thermometer

INSTRUCTIONS:
 For Assertion & Reason question follow the following directions.
DIRECTION: Each of these questions contains an Assertion followed by Reason. Read them carefully and
answer the question on the basis of following options. You have to select the one that best describes the two
statements.
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If Assertion is incorrect but Reason is correct.
(e) If Assertion & Reason both are incorrect.

Choose odd one out from the following(Q.NO.1 to 5) Marks
1. a) Andere Celsius 1
b) Lord Kelvin
c) Sir Thomas Allbutt
d) Gabriel Fahrenheit
2. a) Digital thermometer has thermistor to sense the temperature. 1
b) Digital thermometer has Plastic body.
c) Digital thermometer has LCD to display temperature.
d) Digital thermometer has Kink above the bulb.
3. a) Temperature 1
b) Celsius
c) Thermometer
d) Joule

4. a) Thermometer 1
b) Mercury
c) pressure
d) Glass tube

5. a) Digital thermometer 1
b) Kink
c) Thermistor
d) LCD
Any one option is correct.(Q.No. 6-10)
6. What is the use of kink in thermometer? 1
a) It prevents mercury level from falling on its own.
b) It raises mercury level.