Introduction
Trending Questions
- your hand is an insulator
- heat flows from the ice cube to your hand
- cold flows from the ice cube to your hand
- heat flows from your hand to the ice cube
- Core
- Filament
- Metal base
- Glass bulb
- Force can change the speed of an object.
- Force can change the shape of an object.
- Force can change the direction of an object.
- All of these
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1438674/original_Untitled.png)
Four containers with different colours have cold water at the same temperature. When kept outside on a sunny day, which container will heat faster?
- Yellow
- Black
- Green
- Red
- Wool is a good conductor of heat.
- Air is trapped between the two thin blankets.
- Heat from the surroundings does not reach us.
- Thick blanket absorbs more heat.
I have a glass of water at room temperature, kept inside a closed room. I get a hot mug of coffee, keep it on another table, and get so busy I completely forget about it. As the coffee cools down, what happens to the temperature of the glass of water?
Stays absolutely unaffected, since it is on another table
The coffee cools down; the water also cools down with time
Cannot say from the given information
The water gets warmer
(i)Base of a frying pan, right after cooking.
(ii) Ice cream.
(iii) Snow.
(iv) Molten wax.
i only
i, ii and iii
i and iv
iii and iv
1 hp =
74.6
746
7460
764
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1396951/original_Screenshot_%28566%29.png)
- Heat is being transferred from ice to boiling water by the mode of convection.
- Heat is being transferred from boiling water to ice by the mode of conduction.
- Heat is being transferred from boiling water to ice by the mode of convection
- Heat is being transferred from ice to boiling water by the mode of conduction.
- Fahrenheit
- Celsius
- Metre
- Kelvin
- True
- False
- True
- False
- During wind formation, air moves from a low pressure region to a high pressure region.
- Wind motion is due to differential heating on different places of the earth's surface.
- Direction and speed are two important aspects of winds.
- Wind's direction is influenced by the rotation of the earth
- True
- False
- remains same
- first increases and then decreases
- decreases
- increases
I have a glass of water at room temperature, kept inside a closed room. I get a hot mug of coffee which is kept on another table. As the coffee cools down, what happens to the temperature of the glass of water?
The coffee cools down; the water also cools down with time
The water gets warmer
Cannot say from the given information
Stays absolutely unaffected, since it is on another table
- your hand is an insulator
- heat flows from the ice cube to your hand
- cold flows from the ice cube to your hand
- heat flows from your hand to the ice cube
- first increases and then decreases
- remains same
- decreases
- increases
- decreases
- increases
- doesn't change
- first decreases, then increases
- A
- B
- C
- D
- Fahrenheit
- Celcius
- Kelvin
- Joule
- Y > Z > X
- Z > X > Y
- X > Y > Z
- X = Y = Z
- False
- True
- False
- True