Lori 14

Hi Everyone
Here is my discussion games (activities) i chose
The forces in various games.

Tennis:
Sweating acts like lubricant and makes the hand slippery so the racquet might slip out of the player’s hand. When players dry their hands from the sweat friction acts as the as the person dries their hands.
Gravity pulls down to keep the players feet firmly on the ground.


BMX:
Friction on the handlebars make the hands sweat and make the hands slippery.
When you are pushing on the pedals makes the wheels spin around to make you go. Gravity pulls down on the riders so when they jump a jump they can easily land. (Crash)
Friction tries to slow down a bicycle but the rider keeps pedalling so the bike keeps going and not crash. The rider pulls back on the front brakes when there is a large object on the track such as a rock so they don’t crash and when they pass they can speed up.
Gravity pulls down on a bike so it does not just start floating away while a rider is in the middle of a race.

Swimming:
When a person swims they are pulling their arms through the water to make them go forward.
They are also pushing when they start of against the wall or the block.
In water I think that friction is the exact opposite because there is no rough surface to rub against just liquid.
When you stand up on the surface of the pool there is friction against your foot and the bottom of the pool.



Lori