What are the dimples on a golf ball for?
What are the dimples on a golf ball for?
Dimples on a golf ball create a thin turbulent boundary layer of air that clings to the ball’s surface. This allows the smoothly flowing air to follow the ball’s surface a little farther around the back side of the ball, thereby decreasing the size of the wake.
Why does the golf ball sink in water while the beach ball floats?
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.
How much salt does it take to make a golf ball float?
Students should add a tablespoon of salt to one cup of water in the jar. Then they can put the lid on the jar and shake until the salt is dissolved into the water. Students should add the golf ball to the jar to see if it floats or sinks.
Would a chess piece sink or float?
Density Gizmo
| Object | Prediction (sink or float?) | Result (sink or float?) |
|---|---|---|
| Ping pong ball | F | Float |
| Golf ball | S | Sink |
| Apple | F | Float |
| Chess piece | S | Float |
Is a golf ball more dense than water?
The ball should float between the water, with a density of 1.00 g/ml, and the glycerin, with a density of 1.26 g/ml. The golf ball is more dense than the water and less dense than the glycerin.
Why does a coin sink?
Answer: The reason the pennies sink in water is because of an idea called density. The pennies have more density than the water, and so the pennies sink. Anything with more density than water will sink in water, but other objects that have less density than water will float.
Does baby oil float or sink?
Objects with a higher density sink when compared to objects of a lower density, which float. The cork is less dense than the water. In the case of the baby oil and the water, the baby oil is less dense than the water; therefore, the baby oil floats on top of the water.
Why does wood float but stone sink?
Wood, cork, and ice float in water because they are less dense than water. What does that mean? It floats because it weighs less than amount of water it would have to push out of the glass if it sank. Wood, cork, and ice are all less dense than water, and they float; rocks are more dense, so they sink.
How long does it take for aquarium wood to sink?
Some woods may even never sink altogether unless you weigh them down. That said, the average time it takes for most driftwoods to sink is anywhere between 2 days (for boiled, highly porous woods) to 2 weeks. It might take up to 4 weeks or even 2-months for less porous woods to sink.