0

# How does blowing air through a funnel pick up a ping-pong ball?

Updated: 8/10/2023

Wiki User

14y ago

I think you're referring to the funnel apparatus where the large end of the funnel is pointed down. The funnel itself is just a little larger than the ping-pong ball. Air is blown through the funnel downward towards the ping-pong ball, but the ball doesn't drop. Instead it is held fast inside the funnel.

The explanation lies with the Bernoulli Principle. This principle states that along any streamline of air (a streamline is the path that an air molecule takes), if the velocity of the air drops then the static pressure at that point will rise, and vice-versa. So what happens with the funnel and ping-pong ball is that the air coming out of the funnel has to flow around the ball and therefore it becomes constricted against the sides of the funnel. It doesn't have much room to get by, in other words. That means it has to flow faster over the top of the ball. Faster = lower pressure. When it gets by the ball and expands in the funnel, it slows down. Slower = higher pressure. This pressure difference (high pressure below, low pressure above) is what keeps the ball suspended in the funnel.

Wiki User

14y ago

Wiki User

13y ago

Blow horizontally across the top. Trust me I just saw it done.

Earn +20 pts
Q: How does blowing air through a funnel pick up a ping-pong ball?
Submit
Still have questions?
Related questions

### How big is each planet in tiny ball form?

Ok. Sun: basket ball mecury: marble venus and earth: tennis ball mars: pingpong ball jupiter: medium sized football saturn: small sized football Uranus: pingpong ball neptune: pingpong ball (pluto): marble

### What hits the ground earlier a cricket ball or a pingpong ball?

Cricket Ball yaar

a pingpong ball

### How many pingpong balls can fit on a football field?

There is no rubber in a soccer ball

### Why funnel is used for dropping the ball bearings?

Why funnel is used for dropping the ball bearing

### Why it is called pingpong?

Only because of the sound made when the ball hits the bat or paddle

### What is lighter than a golf ball?

A pingpong ball. There much lighter like if i throw them at my head with my shotgun it will not hurt much.

### How high does a pingpong ball bounce?

The harder you bounce the ping pong ball the higher it goes........the softer you bounce a ping pong ball the shorter it bounces. You control the heighth.

### What is a ping pong ball made of?

plastic , designed to be very light for hitting with a pingpong bat It is made of plastic

### How do you fix a dented pingpong ball?

boil it in water, the dent should rise back up unless there is a crack

### What kind of air is inside the pingpong ball?

it is in fact regular air inside the ball. the smell is because its contained for so long the air has become stale.

### Why does a ping pong ball role out of a funnel when you blow into the funnel?

A ball, like liquids, travels downwards. So, when you blow on it, you give a push to the ball. When the ball loses the power, it rolls downwards. (Out the pipe) By: SupeRMAn