Science General · Environmental Studies

Temperature Concepts

1,035 Questions

Temperature concepts involve understanding thermal conditions across various scientific and daily life contexts. This includes ideal storage temperatures, celestial body heat, and climate ranges. These facts are commonly tested in general science and environmental awareness papers.

Celestial body temperaturesStorage and cooking temperaturesAtmospheric and climate temperatureLaboratory temperature ranges

Temperature Concepts Questions

Multiple choice factors affecting respiration living organisms and energy production life processes in living organisms- part 1 respiration biology

The optimum temperature for respiration is 

  1. 20 -30$^o$C
  2. 25 -60$^o$C
  3. 40 -50$^o$C
  4. 10 -30$^o$C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Respiration is the breakdown of the carbon-carbon bond to release energy.

This process is done with the help of a variety of different enzyme and as we know that the enzyme works efficiently in a narrow range of temperature.
The optimum temperature range for respiration is 20- 30-degree Celsius in which the enzyme work efficiently and the respiration is carried out.
So, the correct option is ' 20-30°C'

Multiple choice geography the polar regions polar regions natural regions of the world diversified world

In the frigid zone the summer temperature varies from ________.

  1. $0^0C-10^0C$
  2. $3^0C-12^0C$
  3. $10^0C-15^0C$
  4. $20^0C-40^0C$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The frigid zone is located one each in the two hemispheres. The frigid zone in northern hemisphere lies between Arctic Circle and the Noth pole and in the southern hemisphere between Antarctic Circle and south pole. This is the coldest area on the surface of the earth and covered with snow throughout the year. In summer the temperature varies from 3degree to 12 degree.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

An ideal shelter for housing a temperature-measurement instrument should be:

  1. White

  2. Black

  3. In the shade

  4. Both white and in the shade
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To measure air temperature accurately, instruments must be protected from direct sunlight and heat radiation. A white surface reflects solar radiation, and placement in the shade prevents direct heating.

Multiple choice biology physical resources air as a natural resource types of chemical reactions chemical reactions

Respiration requires ___ temperatures whereas burning requires __ temperature.

  1. Room temperature, high temperature

  2. Low temperature, high temperature
  3. $37^oC$, high temperature
  4. $37^oC$, low temperature
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Respiration is a slow process occurring inside the living systems only. Hence, it requires body temperature i.e., $37^0C$ to occur. Whereas burning occurs outside the living system. It requires a high temperature to initiate a chemical change.


Hence, option $C$ is correct.

Multiple choice physics temperature and heat application of various thermometric scales different types of thermometers measuring temperature

Two thermometers are constructed in the same way except that one has a spherical bulb and the other a cylindrical bulb; which one will respond quickly to temperature changes?

  1. Spherical bulb thermometer

  2. Cylindrical bulb thermometer

  3. both equally

  4. either
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A spherical bulb has a smaller surface-area-to-volume ratio than a cylindrical bulb of similar volume, but a cylindrical bulb is often designed to have a larger surface area for faster heat exchange. However, the spherical shape is generally more robust, while the cylindrical shape responds faster due to higher surface area exposure.

Multiple choice physics temperature and heat application of various thermometric scales different types of thermometers measuring temperature

At the top of a mountain, a thermometer read ${7}^{0}C$ and barometer reads $70\, cm$ of Hg. At the bottom of the mountain, the barometer reads $76\,cm$ of Hg and thermometer reads ${27}^{0}C$. The density the density at the bottom.

  1. $0.99$
  2. $0.9$
  3. $0.89$
  4. $0.95$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Using the ideal gas law P = rho * R * T. The ratio of densities rho1/rho2 = (P1/T1) / (P2/T2). P1=70, T1=280K; P2=76, T2=300K. rho1/rho2 = (70/280) / (76/300) = 0.25 / 0.2533 = 0.986, which is approximately 0.99.

Multiple choice physics temperature and heat application of various thermometric scales different types of thermometers measuring temperature

A thermometer reads $0^{\circ}$ as $10^{\circ}$ and $100^{\circ}$ as $90^{\circ}C$. Then
Find the reading of the temperature if the temperature is $40^{\circ}C$?

  1. $42^{\circ}C$
  2. $40^{\circ}C$
  3. $35^{\circ}C$
  4. $45^{\circ}C$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The scale is linear: T_new = m * T_c + c. 0 = m(10) + c and 100 = m(90) + c. Solving gives m = 100/80 = 1.25 and c = -12.5. For T_c = 40, T_new = 1.25 * 40 - 12.5 = 50 - 12.5 = 37.5. Wait, checking the math: 0C -> 10, 100C -> 90. Slope = (90-10)/(100-0) = 0.8. T_new = 0.8 * T_c + 10. For T_c = 40, T_new = 0.8 * 40 + 10 = 32 + 10 = 42.

Multiple choice physics temperature and heat application of various thermometric scales different types of thermometers measuring temperature

If two temperatures differ by 25 degrees on Celsius scale, the difference of temperature on Fahrenheit scale is 

  1. $65^{\circ}$
  2. $45^{\circ}$
  3. $38^{\circ}$
  4. $25^{\circ}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Each Celsius degree equals 5/9ths of a Fahrenheit degree. 

Each Fahrenheit degree equals 9/5ths of a Celsius degree. 

A 25 degree difference in Celsius would be 25 x 9/5 = 45 degrees Fahrenheit.

Multiple choice physics temperature and heat application of various thermometric scales different types of thermometers measuring temperature

A Centigrade and Fahrenheit thermometers are dipped in boiling water. The water temperature is lowered unit the Fahrenheit thermometre registers a temperature of $140^o$. The fall of temperature as registered by the Centigrade thermometre is :

  1. $80^o$C
  2. $40^o$C
  3. $50^o$C
  4. $90^o$C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Boiling point is 100C or 212F. The temperature dropped from 212F to 140F, a change of 72F. The conversion factor is 5/9. Change in C = (5/9) * 72 = 5 * 8 = 40C.

Multiple choice physics heat - measurement application of various thermometric scales different types of thermometers measuring temperature introduction to temperature

The most commonly used thermometric substance is

  1. water

  2. alcohol

  3. mercury

  4. steam
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures, and it doesn't stick to glass.

Multiple choice physics heat - measurement application of various thermometric scales different types of thermometers measuring temperature introduction to temperature

A barometer with a brass scale correct at $0^oC$ reads $70\ cm$ of mercury on a day when the air temperature is $40^oC$. the correct reading at $0^oC$ is (Coefficient of real expansion of mercury, is $0.00018/^oC$ and the coefficient of linear expansion of brass is $0.000018/^oC$.

  1. $60.5\ cm$
  2. $69.5\ cm$
  3. $20.5\ cm$
  4. $50.00\ cm$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If the correct heading of barometer at $0^oC$ is $70\ cm$ then the at $40^oC,$ the reading will show,

$L=70(1+\alpha _1\Delta T)$    $[\alpha$ ,of Brass , $\Delta T=40\ k]$
similarly , mercury expands to $70\ cm$ from initial length $Lo$
$\Rightarrow L=Lo(1+\alpha _2\Delta T)$   ($\alpha _2:$ mercury)
It gives :-
$Lo=\dfrac{70(1+\alpha _2\Delta T)}{(L+\alpha _2\Delta T)}=\dfrac{70(1+1.8\times Lo^{-5}\times 40)}{(1+1.8\times 10^{-4}\times40)}$
$Lo=69.55\ cm$