Why does the ping pong ball stay in balance with the hair dryer?

This is due to gravity. The ball “floats” in the air at an even point when the force of gravity (which is forcing the ping pong ball down) is equal to the force of the air stream from the hair dryer (which is pushing the ping pong ball up). This is known as Bernoulli’s Principle.

What is Bernoulli’s principle experiment?

When the experiment is performed correctly, the air coming directly underneath the ping-pong ball will be moving more quickly than the air over the top of the ball. As Bernoulli’s Principle states, this faster moving air results in a decrease in air pressure under the ball.

Why does a ping pong ball stay floating when air is blown underneath it?

Because the air is moving faster, it has less pressure than the air around it. The ping pong ball stays within the column of low-pressure air because of the high pressure surrounding it.

What happens to the balls as you turn on the hair dryer or electric fan?

The air from the hair dryer flows around the outside of the ball and, if you position the ball carefully, the air flows evenly around each side. If the ball tries to leave the stream of air, the still, higher pressure air will push it back in. So, the ball will float in the flow no matter how you move.

What happens to the ball as it floats on the moving water what happens to the strings?

Bernoulli’s Principle states that the higher the velocity of a fluid, the lower the pressure. The running water thus has lower pressure than the air surrounding it. When the ball is hung in the stream of water, it remains in the water even as you tilt the string that is suspending it.

Why does a ball float in a stream of air?

Background. The ball floats in the air because the fast-moving stream of air produced by the blower pushes the ball upwards balancing the weight of the ball (downward force of gravity). Hence, the ball floats in the air.

How does Bernoulli’s principle explain the lifting of the paper?

Bernoulli’s Principle states: as the speed of air increases, the pressure decreases. When you blow fast air over the top of the strip of paper, the air pressure decreases above the paper. The air pressure below the strip is relatively higher; it pushes the paper upward.

How does blowing affect the movement of the ball?

When you blow through the funnel, a current of fast moving air is created around and above the ball. This results in a low-pressure zone below the ball relative to its surroundings. The higher pressure air surrounding the funnel pushes the ball down and keeps it from rising any farther.

How does a ball float on water?

Objects with tightly packed molecules are more dense than those where the molecules are spread out. Density plays a part in why some things float and some sink. Objects that are more dense than water sink and those less dense float. When an object floats, it pushes water out of the way ( displacement ).

Do balls sink or float?

Generally, heavier objects, such as rocks and golf balls, will sink to the bottom because they are heavier than the water that is trying to hold them up. Some objects sink in tap water because they are lighter than the water. 2. Some objects float in tap water because they are heavier than the water.