EASY
9th Telangana Board
IMPORTANT
Earn 100

Your friend is asked to differentiate between evaporation and boiling. What questions could you ask to make him to know the differences between evaporation and boiling?

Important Questions on Heat

EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 3
Water can evaporate at any temperature. Explain with an example.
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 4
What role does specific heat play in keeping a watermelon cool for a long time after removing it from a fridge on a hot day?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 5
Equal amounts of water are kept in a cup and in a dish. Which will evaporate faster? Why? 
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 6
Why specific heat is different for different substances? Explain.
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 7
If you are chilly outside the shower stall, why do you feel warm after the bath if you stay in the bathroom?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 1
Using the concept of evaporation explain why does a wet pant dry fast during hot summer days?
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 2
If 50 g of water at 20℃ temperature and 50 g of water 40℃ temperature are mixed, what is the final temperature of the mixture of?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 3
What do you observe in the surroundings in terms of cooling or heating when water vapour is getting condensed?