https://padlet.com/jtewhaiti/7nlz95bjicew en-us 2017-10-26 00:45:52 UTC 2023-04-06 00:50:56 UTC hello@padlet.com jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200651080 A lever is a thing used to move something.]]> 2017-10-26 00:46:22 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200651080 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200651979 Levers are the simplest of all machines
-A lever is a rigid bar that rotates about a point.
-All levers have 3 pain points. 
-The plane effort applied.
-The fixed point the lever.

]]> 2017-10-26 00:52:21 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200651979 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200656242 2017-10-26 01:17:24 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200656242 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200657007 2017-10-26 01:20:48 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200657007 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200657423 2017-10-26 01:22:52 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/200657423 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202750219 -Friction is a force of resistance to the motion of an object.
-Friction happens when two surfaces touch each other.
-In machines, friction occurs where two surfaces slide or roll on each other.
-Some parts of machines are designed to overcome friction . 
-Eg Wheels, ball bearings.
-Some machines use oil to lessen friction.]]> 2017-11-02 00:57:01 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202750219 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202751808 2017-11-02 01:07:03 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202751808 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202751899 Friction occurs when Hands go on to the handle bars When The chain and the chain rings connect and when the rubber off the tire connects to the ground]]> 2017-11-02 01:07:27 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202751899 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202752855 2017-11-02 01:13:38 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202752855 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202752898 2017-11-02 01:13:53 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202752898 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202753006 2017-11-02 01:14:36 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202753006 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202753030 2017-11-02 01:14:45 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202753030 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202753371 https://youtu.be/MAqrWvkBoHk]]> 2017-11-02 01:16:43 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/202753371 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205103893 -When two surfaces rub on each other, the resulting friction causes the surfaces molecules to vibrate. This causes heat.]]> 2017-11-09 00:54:38 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205103893 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205104747 -Oils and lubricant on metal parts help to:
-Reduce the amount of friction by allowing the parts to slide smoothly.
-Absorb some of the heat produced by friction and spread it around.]]> 2017-11-09 01:00:50 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205104747 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205105539 - Bike tires come in different shapes and sizes.
- Road tires are smooth and thin this reduces frictio and makes the tire go faster.]]> 2017-11-09 01:07:00 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205105539 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205106623 Mountain bike tires are made to go up hills and use friction to its advantage this increases friction and allows the bike to go around less friction grounds.]]> 2017-11-09 01:13:55 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205106623 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205107684 When two surfaces rub heat is created.
If you put oil on brake pads of your bike your brakes would be worse.
When two surfaces rub heat is created because the molecules spin faster.]]> 2017-11-09 01:19:48 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/205107684 jtewhaiti https://padlet.com/jtewhaiti/7nlz95bjicew/wish/207493701 2017-11-16 01:29:21 UTC https://padlet.com/jtewhaiti/7nlz95bjicew/wish/207493701