Download App

Matter — PHYSICS STD 8 — Question

ICSE BoardEnglish MediumSTD 8PHYSICSMatter2 Marks
Question
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
✓

Answer

If some spirit is poured on cotton wrapped around the bulb of a thermometer, the reading of the thermometer falls. This shows that cooling is produced when a liquid evaporates taking heat from surroundings.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Matter→Matter — all question types→PHYSICS STD 8 question papers→ICSE Board STD 8 question papers→ICSE Board question paper generator→

Similar questions

The density of water is $1.0 g\ \ cm ^{-3}$. The density of iron is $7.8 \times 10^{\prime \prime}\ 3 g\ \ cm ^{-3}$. The density of mercury is $13.6 g\ \ cm ^{-3}$
Ans the following :
$(b)$ Will a piece of iron float or sink in mercury?
→
What is longitudinal wave?
→
The speed of light in diamond is found to be $1,24,000 \ km/s$. What is the refractive index of diamond?
→
Why does a glass rod get positively charged when rubbed with silk?
→
Define amplitude, time period and frequency with respect to a sound wave. State the relationship between time period and frequency of a wave.
→
A metal plate is heated. State three factors on which the increase in its area will depend.
→
Calculate the density of solid from the following data :
$(a)$ Mass of solid $= 72\  g$
$(b)$ Initial volume of water in measuring cylinder $= 24\  ml$
$(c)$ Final volume of water when solid is completely immersed in water $= 42\  ml$
→
How is a body charged by friction?
→
How are angle of incidence, angle of prism, angle of emergence and angle of deviation related to each other?
→
A piece of zinc of mass $438.6\  g$ has a volume of $86\  Cm^3$. Calculate the density of zinc.
→