Experiments Related to Bernoulli’s Principle

Experiment 1

A paper will be lifted upwards when air is blown rapidly above it.

Explanation:

1. Air move rapidly above the paper, causes the pressure above the paper to decrease.
2. Pressure below the paper becomes relatively higher.
3. Owing to the difference of the pressure, a net force is produced to push the paper upward.

Experiment 2

When air is blown rapidly between the 2 ping pong balls, the 2 balls will move towards each other.

Explanation:

1. Air move rapidly between the 2 balls, causes the pressure between the 2 balls to decrease.
2. Pressure at the other side of the balls becomes relatively higher, push the 2 ball close to each other.

Experiment 3

The ping pong ball will not fall when water is allowed to flow through the filter funnel.

Explanation:

1. Water above the ping pong ball flow rapidly, causes the pressure above the ping pong ball to decrease.
2. As a result, the pressure below the ping pong ball is relatively higher.
3. Owing to the difference of the pressure, a net force is produced to push the ping pong ball upward.