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- 1. Multiple Choice
Which one of the following is a reliable measure of heat?
Hotness
Coldness
Temperature
None of these
- 2. Multiple Choice
Name the device which is used to measure the hotness or coldness of an object.
Picometer
Barometer
Manometer
Thermometer
- 3. Multiple Choice
If we add a lump of ice to a tumbler containing water, ___________.
heat flows from water to ice
heat flows from ice to water
heat flows from water to ice if water is more in quantity.
heat flows from ice to water if ice is more in quantity.
- 4. Multiple Choice
The temperature at which pure ice melts is ___________.
0°C
100°C
-100°C
98.6°F
- 5. Multiple Choice
A thermometer contains __________.
water
mercury
silver
copper
- 6. Multiple Choice
What is the normal body temperature of a healthy person?
37°C
37°F
37°K
98.4 K
- 7. Multiple Choice
Heat always flows ___________.
from a colder object to a hotter object
from a hotter object to a colder object
in both directions
from a stationary object to a moving object
- 8. Multiple Choice
Paheli and Boojho measured their body temperature. Paheli found hers to be 98.6°F and Boojho recorded 37°C. Which of the following statements is true?
Paheli has a higher body temperature than Boojho.
Paheli has a lower body temperature than Boojho.
Both have normal body temperature.
Both are suffering from fever.
- 9. Multiple Choice
The unit of measurement of temperature is ___________.
metre
kilogram
degree celsius
second
- 10. Multiple Choice
The liquid metal used in a thermometer __________.
is able to expand uniformly for all temperatures
is transparent and easy to see
is opaque and difficult to read
is able to expand uniformly for certain temperatures
- 11. Multiple Choice
The upper standard point on the Fahrenheit scale is ___________.
100 °
120 °
212 °
180 °
- 12. Multiple Choice
One degree Celsius rise in temperature is equal to ___________.
1 degree rise on the Kelvin scale
1 degree rise on the Fahrenheit scale
both (a) and (b)
1 degree fall on the Kelvin scale
- 13. Multiple Choice
The increase in length of a solid when heated is called ___________.
thermal expansion
linear expansion
superficial expansion
cubical expansion
- 14. Multiple Choice
SI Scale of temperature is ___________.
Celsius scale
Kelvin scale
Fahrenheit scale
Reaumur scale
- 15. Multiple Choice
Small gaps are left between railway lines because ___________.
rails of very long dimensions will shatter
expansion of rails occurs during summer
contraction of rails occurs during winter
both (b) and (c)
- 16. Multiple Choice
The increase in area of a solid when heated is called ___________.
thermal expansion
linear expansion
superficial expansion
cubical expansion
- 17. Multiple Choice
A bimetallic strip made from brass and invar bends when heated. When it's bent, the object has ___________.
brass on the outside and invar on the inside
invar on the outside and brass on the inside
brass and invar of the same length
brass on the outside for a while and then invar will take its place
- 18. Multiple Choice
The type of energy which causes in us the sensation of hotness or coldness is called ___________.
chemical energy
magnetic energy
light energy
heat energy
- 19. Multiple Choice
Which of the following expands only in volume when heated?
Solid
Liquid
Gas
Both (b) and (c)
- 20. Multiple Choice
Which will not undergo sublimation?
Ammonium chloride
Camphor
Sodium chloride
Iodine
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