KIDS QUIZ
SCIENCE FICTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
There is friction when you are swimming.
|
|
true
|
|
|
false
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Buoyancy force. The water pushes up on the swimmer with a value proportional to the volume of water displaced by the swimmer. If the swimmer stays at the surface, buoyancy force must be equal in magnitude to gravitational force.
Detailed explanation-2: -Skin friction is the type of drag created when the swimmer’s body and swim suit pass through water. The most time honored technique to counter skin friction is the shaving of the swimmer’s body hair on any places that have contact with the water.
There is 1 question to complete.