When you come out of a river after a dip, you feel cold Explain.

When you come out of a swimming pool on a windy day, you feel cold. Give reason.

One hard and stormy night you find yourself lost in the forest when you come upon a small hut. Entering it you see a crooked old woman in the corner hunched over a crystal ball. You are about to make a hasty exit when you hear the howl of wolves outside. Taking another look at the gyspy you decide to take your chances with the wolves, but the door is jammed shut. Resigned to a bad situation you approach her slowly, wondering just what is the focal length of that nifty crystal ball. The image of old lady is

When you blow on a cold glass or a mirror, you can see the hot air condensing on it.

Two liquids (A) and (B) can be separated by the method of fractional distillation. The boiling point of liquid (A) is less than boiling point of liquid (B). Which of the liquids do you expect to come out first in the distillate ? Explain.

When you touch a piece of metal and a piece of wood simultaneously, metal appears colder or hotter. Can wood and metal feel equally cold or hot when touched?

How would you prove that the air you breathe out in warmer?

When a tyre bursts, the air coming out is cooler than the surrounding air. Explain.

Consider the following statement. When jumping from some height, you should bend your knees as you come to rest instead of keeping your legs stiff. Which of the following relations can be useful in explaining the statement?

Consider the following statement. When jumping from some height, you should bend your knees as you come to rest instead of keeping your legs stiff. Which of the following relations can be useful in explaining the statement?