https://padlet.com/wurtsn_21/z43bv2fijozg Made with fortitude en-us 2016-10-04 14:49:30 UTC 2016-10-11 00:57:07 UTC hello@padlet.com wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128199821 A force that opposes motion between two surfaces that are in contact.]]> 2016-10-04 14:55:47 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128199821 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128201749 Velocity has direction, speed does not.]]> 2016-10-04 14:59:57 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128201749 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128202482 Kinetic friction- Moving friction. The friction that takes effect on moving objects.]]> 2016-10-04 15:01:34 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128202482 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128203364 Static friction- Not moving friction. When an object doesn't move because the friction is greater than the force applied. As soon as the object starts moving, the static friction turns into kinetic friction.]]> 2016-10-04 15:03:36 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128203364 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128204211 Every surface has microscopic hills and valleys. Rougher surfaces have more microscopic hills and valleys than smooth surfaces.]]> 2016-10-04 15:05:27 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128204211 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128205636 Causes holes in jeans and socks. Erosion of top soil that plants need to survive is another negative.]]> 2016-10-04 15:08:46 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128205636 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128206234 Allows pencils and other writing utensils to be used (sliding). Prevents you from falling flat on your face when walking. Allows brakes on bikes, cars, buses etc. to be used.]]> 2016-10-04 15:10:09 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128206234 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128207277 By making the surface that is being rubbed on rougher or by increasing the force being exerted. For example, salt/sand scattered on roads to increase friction between car tires and the road.]]> 2016-10-04 15:12:28 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128207277 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128208804 By making the surfaces smoother or by using a lubricant such as wax, grease, or motor oil in cars.]]> 2016-10-04 15:15:50 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128208804 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128209634 Substances that are applied to surfaces to reduce friction.]]> 2016-10-04 15:17:45 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128209634 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128502791 Section 1- Measuring Motion
Section 2- What is a Force?
Section 3- Friction: A Force that Opposes Motion
Section 4- Gravity: A Force of Attraction]]> 2016-10-05 14:36:12 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128502791 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128504329 When you apply force to an object, static friction takes effect either preventing you from pushing/pulling it or making harder to move (unless it is a surface with not much friction). When the object starts to move, static friction turns to kinetic friction.]]> 2016-10-05 14:39:54 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128504329 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128505593 A push or pull exerted on an object in order to change the motion of the object; force has size and direction.]]> 2016-10-05 14:42:59 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128505593 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128506828 The combination of all of the forces acting on an object.]]> 2016-10-05 14:45:21 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128506828 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128507355 The SI unit for force (represented by an N]]> 2016-10-05 14:46:26 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128507355 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128507978 Force is expressed in newtons.]]> 2016-10-05 14:47:52 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128507978 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128510567 Forces that you can't see-Magnetic force, friction, gravity etc.]]> 2016-10-05 14:54:19 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128510567 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128511133 You determine net force by adding up the forces and then figuring out which direction of force has more force being applied.]]> 2016-10-05 14:55:37 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/128511133 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129535927 When determining the net force, some vectors may run in the same or different directions. When they go in the same direction, you combine the forces together. If they happen to run in different directions, you also combine them and whichever side has more force, is the direction that the force will run in.]]> 2016-10-10 14:54:05 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129535927 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129536862 When forces are balanced, there is no motion that will occur. When forces are unbalanced, motion will occur.]]> 2016-10-10 14:56:42 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129536862 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129537424 An object's change in direction in position relative to a reference point.]]> 2016-10-10 14:58:10 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129537424 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129537741 The distance traveled divided by the time interval during which the motion occured.]]> 2016-10-10 14:59:09 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129537741 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129538174 The speed of an object in a particular direction.]]> 2016-10-10 15:00:32 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129538174 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129538414 The rate at which velocity changes over time; an object accelerates if speed, direction or both changes.]]> 2016-10-10 15:01:26 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129538414 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129538849 A reference point is the object that stays in place when you are moving. For example, when you are in a car, mail boxes don't move backwards.]]> 2016-10-10 15:03:00 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129538849 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129539697 SI unit for speed- Meters per second

Average Speed= Total Distance/Total Time]]> 2016-10-10 15:05:52 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129539697 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129540152 On a graph, increasing speed is represented by an increasing line. When speed is decreasing, the line will decrease as well.]]> 2016-10-10 15:07:15 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129540152 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129540450 In velocity, you must have a reference direction and your speed. The only difference between speed and velocity is that velocity has a reference direction and speed does not.]]> 2016-10-10 15:08:13 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129540450 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129541599 When you combine velocities, you end up with a resultant velocity which is the combination of the velocities that were given. For example, if you are walking forward on a moving bus at 3 mph, and the bus is moving forward at 25 mph, the resultant velocity is 28 mph.]]> 2016-10-10 15:11:36 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129541599 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129542521 Average Acceleration= Final Velocity- Starting Velocity/Time it Takes to Change Velocity]]> 2016-10-10 15:13:56 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129542521 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129543031 A force of attraction between objects that is due to their masses.]]> 2016-10-10 15:15:12 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129543031 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129543429 A measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe.]]> 2016-10-10 15:16:23 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129543429 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129543955 A measure of the amount of matter in an object.]]> 2016-10-10 15:18:09 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129543955 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129659697 All matter has mass and gravity is a result of mass.]]> 2016-10-11 00:14:07 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129659697 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129660009 Gravitational force increases as mass increases and/or as the distance between two objects becomes less. Gravitational force is large when one or both of the objects are large.]]> 2016-10-11 00:17:41 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129660009 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129662279 Gravitational force decreases as mass decreases and/or the distance between the two objects increases. Gravitational force is weak when one or both of the objects are small.]]> 2016-10-11 00:40:51 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129662279 wurtsn_21 https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129664014 Your weight is how much gravity is pulling down on you. This can change with different locations in the universe. Your mass is how much matter you have in you. This number doesn't change with your location in the universe.]]> 2016-10-11 00:53:15 UTC https://padlet.com/wurtsn_21/z43bv2fijozg/wish/129664014