Table of Contents
- 1 Why does the water not flow out of the bottle with the cap on tightly?
- 2 What happen if you put a bottle with an upside down lid into hot water?
- 3 What happened to the balloon inside the bottle?
- 4 Why do vortexes form?
- 5 Why does water stop flowing out of a bottle when opened?
- 6 What happens when you dip a water bottle in water?
Why does the water not flow out of the bottle with the cap on tightly?
Explanation: When the cap is on the bottle, the air pressure in the bottle is equal to the air pressure outside the bottle. Since the pressure is the same nothing comes out of the uncovered hole at first. When the cap is taken off, the water squirts out of the bottle.
Why is it so hard to get all of the water out of a bottle even when it is tipped upside down?
Air pressure. The water is trying to get up into the bottle from underneath, which means that the air inside has nowhere to go. As water tries to push into the bottle, it compresses the air, causing the air pressure to rise, which pushes back against the water.
What happen if you put a bottle with an upside down lid into hot water?
Once the hot water was placed in the bottle, it heated up the air inside the bottle. When we put the cap on the bottle, the hot air is trapped inside the bottle. Therefore, the air pressure pushing in was greater than the air pressure pushing out, causing the bottle to be crushed!
Why does air from lower bottle come up only through Centre of water when the bottles are rotated?
As water drops into the lower bottle, the pressure in the lower bottle builds until air bubbles are forced into the upper bottle. If you spin the bottles around a few times, the water in the upper bottle starts rotating.
What happened to the balloon inside the bottle?
When a balloon is placed inside the bottle, it will not inflate, since the bottle is already filled with air particles with no escape route. This is a great demonstration that air takes up space. If the hole in the bottle is then plugged, the balloon stays inflated even when the mouth is removed.
Why does water not fall out of a glass?
The reason this experiment works is because of air pressure! Air pressure is the weight of a column of air pushing down on an area. Because of the air pressure pushing up on the card, the card will stay on the glass and the water will not spill out.
Why do vortexes form?
Vortices often form as a result of a difference in fluid speed – like when fast wind moves over slow wind. This is what happens when you drag the plate through the water – the water right next to the plate moves quickly because of friction, but the water further away from the plate is stationary.
What prevents the balloon from expanding to completely occupy the inside of the bottle?
No matter how hard you blow into the balloon, the air inside the bottle pushes back just as hard, preventing the balloon from inflating. Thus when you stop blowing, the pressure in the balloon is also 1 atmosphere- which is why it stops expanding- but it’s now bigger.
Why does water stop flowing out of a bottle when opened?
Once the pressure difference between the air in the tip of the bottle and the outside atmosphere is large enough to counteract the force exerted by gravity on the water, it will stop flowing out and at that point is held in by the pressure difference from the air inside the bottle to the atmosphere outside. Highly active question.
How can you tell if a water bottle is empty?
Now, if you gave the air a way out, like poking a hole in the bottle, or running a straw or tube into it from the outside, you’d see the water level rise as it pushed the air out. The bottle which you consider yo be empty is actually full of air.
What happens when you dip a water bottle in water?
When the bottle is dipped inside water, it applies pressure on the air present inside so as to replace it. But the air present inside the bottle applies opposite force on the water as it tries to escape through the only opening present which is surrounded by water.
What happens when you submerge an empty water bottle upside down?
And air occupies space so when you submerge an empty bottle upside down in a tub of water, the air gets trapped into it as it have no space to come out. Since the space is occupied by air, water can not enter it but when you tilt the bottle the air comes out and bubbles are created and the empty space inside the bottom gets filled with water.