Explain an activity to show that high speed winds are accompanied by reduced air pressure.
Answers
Activity:-
Crumple a small piece of paper into a ball of smaller size than the mouth of an empty bottle.
Hold the empty bottle on its side and place the paper ball just inside its mouth.
Now try to blow on the ball to force it into the bottle.
When we blow into the mouth of the bottle the air near the mouth has higher speed. This decreases the pressure there. The air pressure inside the bottle is higher than near the mouth. The air inside the bottle pushes the ball out.
Answer:
ACTIVITY:-
• Take an empty bottle. Put a crumbled paper shaped as a ball of a size smaller than the mouth of bottle inside the mouth.
• Try to blow on the ball to force it into the bottle. it is difficult,
• This is because when you blow into the mouth of the bottle, the air near the mouth has higher speed. This decrease the pressure there. The air pressure inside the bottle is higher than near the mouth and hence, the air inside the bottle pushes the ball out.
Explanation:
Thus, the two major concepts are: High speed winds are accompanied by reduced air pressure. Explanation: As the pressure of an area reduces, wind speed increases and vice versa. Higher the pressure difference, higher the speed of wind.