What is this?
The air pressure inside the bottle decreased to the point where it was less than the air pressure outside the bottle
. Therefore, the air pressure pushing in was greater than the air pressure pushing out, causing the bottle to be crushed!
Why does bottle collapse on a mountain?
If you sealed the bottle at the top of the mountain, the air pressue is the lower, mountaintop air pressure inside.
When you go down the mountain, the air pressure rises, but not inside the bottle, so the bottle ends up getting crushed.
Why does my water bottle collapse?
Pressure in a Bottle
If a bottle is capped and then left in the cold, the air inside the bottle cools faster than the air outside the bottle
. This means the air outside the bottle is exerting more pressure than the air inside the bottle, and the bottle collapses.
What happens when you take a sealed plastic bottle of air up a mountain?
You’re right that the pressure (and density) are higher at the bottom of the mountain than at the top. So when you sealed the bottle at the top and brought it down,
there was more pressure outside than in
. That means more force pushing in on the sides than pushing out, so the sides caved in.
Why did my water bottle expand?
The water takes some time to come up to room temperature from being cold, so it re-cools the air in the head space
(now larger since you drank more from it), and will expand more dramatically since there was more air-to-water volume inside the bottle.
Why does air pressure decrease as you move higher in the atmosphere?
Air pressure is strongest near the surface because more air molecules are above you (and pushing on you). As you move higher
there is less air molecules pushing on you
and therefore as you go up the air pressure decreases.
Is the pressure higher at the top of a mountain?
Explanation: The atmospheric pressure decreases with increasing altitude because both the height of the overlying air column and the density of the air decreases. So,
the atmospheric pressure at ground level will be greater than the atmospheric pressure at the top of a high mountain
.
Why does a bottle collapse in the freezer?
The cold in the freezer cools the air inside the bottle.
As the air temperature changes, the air pressure drops and the sides of the bottle collapse
.
Where is the pressure higher up in the mountain or down in the valley explain with appropriate examples?
The pressure is higher at the bottom of the mountain (valley) than at the top of the mountain
. When the bottle is sealed at the top and brought it down to the valley, more pressure is observed outside. So more force pushing on the sides than pushing out, so the bottle shape get collapsed. Thus option D is correct.
What happens in the collapsing bottle experiment?
The hot water raises the temperature – the pressure increases and the molecules spread out (some leave the bottle). When the air cools, the pressure is lower than before because there are fewer molecules bouncing around. The air pushing on the outside of the bottle has more pressure, which crushes the bottle.
Is it safe to drink from a dented water bottle?
When you buy an 18/8 food-grade stainless steel water bottle, you can be confident that
it won’t leach chemicals into your water, even if the bottle becomes scratched, dented, or aged
. It’s also safe to use with hot liquids and, because no liner is needed, it won’t hold bad tastes.
What do you think will happen to the air in the bottle when it is in contact with the hot water?
When the bottle is placed into the pan of hot water,
the heat from the water causes the air inside the bottle to heat up
. As the air in the bottle heats up, the molecules of the air begin to move faster and take up more space. The air from the bottle then moves into the balloon causing it to inflate.
Why does a bottle crush in the plane?
It pushes against the outside of the bottle, but the pressure inside the bottle isn’t pushing back with the same force.
Since the pressure outside of the bottle is greater than the pressure inside the bottle
, the bottle crumples.
When you squeeze an empty and sealed water bottle the pressure increases what causes the pressure to change?
However, the volume in which the particles bounce around in decreases therefore
the number of collisions between the particles and the inner surface of the water bottle increases
. This is pressure.
Why don’t we get crushed by the air around us?
As a fluid, air flows around you and tries to crush you in. Fortunately,
there is typically just as much pressure inside your body pressing outward as there is air pressure outside your body pushing inward
. They typically cancel out, meaning that there is no overall force on you and you don’t get crushed.
Why does height increase with pressure?
The gravitational attraction* between the earth and air molecules is greater for those molecules nearer to earth than those further away — they have more weight — dragging them closer together and increasing the pressure (force per unit area) between them.
Does water pressure increase or decrease as you go deeper into the sea?
The deeper you go under the sea,
the greater the pressure of the water pushing down on you
. For every 33 feet (10.06 meters) you go down, the pressure increases by one atmosphere .
How does pressure change as altitude increases in the atmosphere?
The atmospheric pressure varies with altitude as the density of air decreases as we rise up and the air becomes rarer.
Atmospheric pressure decreases with increases in altitude
.
What causes atmospheric pressure?
Air pressure is caused by
the weight of the air molecules above
. Even tiny air molecules have some weight, and the huge numbers of air molecules that make up the layers of our atmosphere collectively have a great deal of weight, which presses down on whatever is below.
What type of pressure is at the top of the mountain?
At sea level, the atmospheric pressure would be a little over 100 kPa (one atmosphere or 760 mm Hg). If we climb to the top of Mount Everest (the highest mountain in the world at 29,029 feet or 8848 meters), the atmospheric pressure will drop to
slightly over 30 kPa
(about 0.30 atmospheres or 228 mm Hg).
Why is it colder in the mountains than in lower elevations?
Mountains are colder than lower elevations for the same basic reason that it’s cold outside a plane:
air is always on the move, and any air that moves upward in the atmosphere will expand and cool
.
Why does a balloon on top of a water bottle expand when the bottle is placed in hot water?
WHAT IS HAPPENING? When you stretch the balloon over the opening of the bottle, all of the air is trapped inside.
Putting the bottle in hot water causes the air molecules inside to heat up and begin taking up more space (thermal expansion), causing air to enter the balloon and inflate it
.
Why is the bottle dented after being cooled in the refrigerator?
Why is the bottle dented after being cooled in the refrigerator?
Heat molecules inside the bottle were destroyed
.
Why does an empty PET bottle kept in fridge shrinks?
When kept inside the refrigerator,
the water vapors inside the bottle will condense
, leaving a lot of empty space inside the bottle. The air outside the bottle will exert extra pressure which would lead to the bottle collapsing.
