- Do things weigh more in a vacuum?
- Which is the heaviest gas?
- Which is the lightest gas in the world?
- Does air in a bag weigh anything?
- What goes up and never comes down?
- What is the thickest gas?
- Does deflating a football make a difference?
- Does a football weigh more with air?
- What’s lighter than air but can’t be lifted?
- How do I make sure my luggage is not overweight?
- What lighter than a feather but the strongest man can hold it?
- What is the heaviest liquid on Earth?
- What do you call the weight of air?
- Does AIR make things lighter?
- Do space bags make things heavier?
- Why weight is maximum in vacuum?
- What is full of holes but still can hold water?
- Is a deflated football easier to throw?
Do things weigh more in a vacuum?
Why do objects weigh more in a vacuum.
When we weigh some object in air it displaces air in that space which provides little upward force which make it weigh less.
Upward force cancels the force due to gravity..
Which is the heaviest gas?
radonIn 1908 Ramsay and Gray, who named it niton, isolated the element and determined its density, finding it to be the heaviest known gas. It is essentially inert and occupies the last place in the zero group of gases in the Periodic Table. Since 1923, it has been called radon.
Which is the lightest gas in the world?
Helium is the second most abundant element in the universe, after hydrogen. Helium has monatomic molecules, and is the lightest of all gases except hydrogen. . Helium, like the other noble gases, is chemically inert.
Does air in a bag weigh anything?
Zero the scale in a vacuum then bringing it into normal atmosphere will give the weight of air inside and outside the bag due atmospheric pressure on the scale. Also an open bag of air always weighs the same but a sealed bags weight changes depending on where you filled it versus where you weigh it.
What goes up and never comes down?
What goes up but never comes down? The answer is your age!
What is the thickest gas?
The divalent molecule is not the natural state of xenon in the Earth’s atmosphere or crust, so for all practical purposes, radon is the heaviest gas.
Does deflating a football make a difference?
In the end, the reason for deflating a football owes more to physiology than physics. A slightly deflated ball is a bit softer, making it easier to grip the ball to throw it and reducing the bounce when it hits the hands of a receiver, making it easier to catch.
Does a football weigh more with air?
Similarly, a properly inflated football has a pressure of 13 pounds per square inch and thus the air inside it exerts an outward force of 13 pounds on each square inch of surface inside the ball.
What’s lighter than air but can’t be lifted?
I’m lighter than air but a million men can’t lift me. What am I? A bubble. A bubble.
How do I make sure my luggage is not overweight?
7 Tips to Avoid Overweight LuggageChoose Lightweight Luggage. … Read the Fine Print. … Wear Your Heaviest Pieces of Clothing. … Avoid Packing Heavy Items in Check-in Bags. … Consider Buying Items When You Land. … Check-in Early. … Buy Souvenirs at Duty-Free.
What lighter than a feather but the strongest man can hold it?
I’m lighter than a feather but even the world’s strongest man can’t hold me for more than a few minutes. What am I? Breath. Air is light, but even Stig Severinsen, the world record holder can only hold his breath for 22 minutes.
What is the heaviest liquid on Earth?
MercuryMercury is the densest liquid at standard conditions for temperature and pressure (STP). Also called quicksilver, mercury has been known for more than 3,500 years. It is an important metal in industry, but it is also toxic.
What do you call the weight of air?
The weight of the air is called Air pressure .
Does AIR make things lighter?
In air, as in water, buoyancy is the effect that drives lighter things upward. … We don’t feel it, because we are so much denser than air; but helium, which is lighter, is pushed upward by the air pressure. As long as the density of the air is greater than the density of the helium, the helium will rise.
Do space bags make things heavier?
Well, actually when you remove the air it does become lighter, but it’s not noticeable because you still have the weight of the bag itself. … Using vacuum storage bags in your luggage will make your luggage heavier. If weight is a concern, then you would be better off not using them.
Why weight is maximum in vacuum?
The apparent weight of body is less in air than in vacuum. This follows from Archimedes principle , which explains the loss in weight of a body immersed in a fluid, due to the upthrust . But in vacuum, there is no upthrust and hence no loss in wieght of a body. That is why a body weighs more in vacuum than in air .
What is full of holes but still can hold water?
So, what is full of holes but still holds water? The answer is a sponge! This one’s actually a bit of a classic but with so many riddles back in the limelight, we’re hardly surprised to see it return.
Is a deflated football easier to throw?
A slightly deflated football may also be easier to throw, as long as it isn’t overly flat. “As you grip it, you might be able to hold it a little tighter or a little harder [before throwing it],” Morales said. … A deflated football has a smaller mass because it has fewer gas molecules inside of it.