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Practice each question, then open the answer or worked solution.
Stand with this snake below a fan. Look in which direction it moves. Take this paper snake to different places and observe its movement.
Answer: When we take the paper snake under a fan, it rotates in an anticlockwise direction since the air moves downwards.
Can you understand from the movement of the snake – if the air is moving upwards or downwards?
Answer: Yes, we can understand from the movement of the snake whether the air is moving upwards or downwards. If the paper snake moves in a clockwise direction, then we can say that the air is moving upwards.
If the paper snake moves in an anticlockwise direction, then we can say that the air is moving downwards.