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When floating a ping pong ball with a hair dryer which two forces are balanced?

Author

Olivia Shea

Updated on February 24, 2026

When floating a ping pong ball with a hair dryer which two forces are balanced?

The ping-pong ball will fly up with the air from the hair dryer until it reaches a point of balance – this is where the force of gravity (which pushes the ping-pong ball down) is equal to the force of the air (which is pushing the ping-pong ball up).

In respect to this, how do you levitate a ping pong ball?

Blow a constant breath of air into the straw under the ping pong ball. If the air pressure is strong enough, it will lift the ball off the tip of the straw! You may need to try again, blowing even harder next time! Make sure you take breaks between attempts - you don't want to get light-headed!

Likewise, does a ping pong ball sink or float? Lighter objects, such as paper and leaves, will float on top of the water or be suspended in the water because they are lighter than the water that is trying to hold them up. This is called buoyancy. Also, hollow objects, such as ping pong balls, will generally float on top of water.

In this way, why does a ping pong ball float in water?

Because the surface of the cup is hydrophilic (water loving), the water rises up the sides of the cup. The ping pong ball is buoyant, it floats, and it seeks the highest surface. When the water in the cup is not filled to the top, the ball clings to the sides of the cup where the water is the highest.

What is the mass of a ping pong ball?

2.7 grams

Does pencil sink in water?

In the salt water, the pencil sinks below the water surface. In the salt water, more of the pencil is below the water than before. In the salt water, more of the pencil is above the water than before. In the salt water, the same amount of the pencil is above the water as in the fresh water.

Why do objects float?

An object floats when the weight force on the object is balanced by the upward push of the water on the object. The upwards push of the water increases with the volume of the object that is under water; it is not affected by the depth of the water or the amount of water.

What causes things to sink or float?

Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and volume.

What materials are made of that usually float on water?

Objects like apples, wood, and sponges are less dense than water. They will float. Many hollow things like empty bottles, balls, and balloons will also float. That's because air is less dense than water.

Can ball float in water?

The density of water is 1.0 g/cm3 so the 8-pound bowling ball floats because it is less dense than the water (. Any bowling ball that weighs more than 12 pounds will sink in water, and any bowling ball that weighs less than 12 pounds will float.

Can you use mass alone to predict whether an object will sink or float?

Mass & Volume ??

Can mass alone be used to accurately predict whether an object will sink or float? -No, you need both mass and volume to determine its desity to see if it can float. -No, you need both mass and volume to find its density to see if it can float.

Is a ping pong ball more dense than water?

Mass is the amount of matter in a substance. Dense objects have more mass than less dense objects. Hollow objects such as ping pong balls or empty plastic bottles float better than solid objects like baseballs or filled water bottles due to the air inside-air is lighter than water (in a liquid or solid state).

Will a spoon sink or float?

The metal spoon is denser than water, so it would sink.

Shape is also important for floating. A heavy boat with hundreds of people and cars onboard can float because it has the right shape!

Is a ping pong ball dense?

The metal ball has the highest density, the ping-pong ball has the lowest density, and the pinto beans have a density somewhere in between. The fluid begins to flow when the container is shaken from side to side. The high-density metal ball sinks, while the low density ping-pong ball bobs up to the surface.

Does a plastic bottle of fresh water sink or float in the ocean Why?

If it's seawater inside the PVC bottle, it will always sink, because PVC is denser than seawater. Fresh water is less dense than seawater, so if the bottle is big enough and thin enough, the overall weight-per-volume (density) of the bottle-water system could be less than that of seawater, and it will float.

Do Wiffle balls float?

When air is in rapid motion, its pressure is lowered. Also, the wiffle ball is noticeably heavier than the ping pong ball. This increase in weight more difficult to overcome the force of gravity in order for the ball to float in the air.

Do golf balls float?

A closer look: The golf ball is not as dense as the saltwater. Therefore, the ball floats on top of the saltwater. The colored fresh water is not as dense as the golf ball, so the ball sinks in the colored water.

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When floating a ping pong ball with a hair dryer which two forces are balanced?