 Take binder bulletin and sheet from front desk  Take out HW and put your name on it

A force is a push or pull on an object. Apply a force on any object in the room

 A force is any PUSH or PULL on an object  Forces can come from any DIRECTION (up, down, right, left, diagonal)  Force is measured in NEWTONS (N)  Forces act on ALL objects  Forces are not always VISIBLE

 There are usually one or more forces acting on an object. The combination of these forces is called the NET FORCE  Same direction › the object will move in the direction that BOTH forces are moving  Different direction › The object will move in the direction that the LARGER force is moving

 When your forces are unequal, the net force will be the difference between the forces  If the forces are equal, the net force would be 0 Newtons and the object would NOT move

 2 Types of forces commonly mentioned are: › Friction › Gravity  Friction is where your force resists motion between two surfaces of the objects that are in contact.  If friction is present, the moving object will STOP moving or SLOW DOWN

 KINETIC FRICTION › Which is friction between moving surfaces. Ex. A book being pushed across a table top  STATIC FRICTION › Which is friction that prevents an object from even moving. Ex. A book at rest on a table top.

 You can ADD or REMOVE friction by adding or removing substances from the situation  Gravity is a force of attraction that is related to the mass of an object. Weight is a measurement of gravity on an object

 Gravity can increase as mass increases. So if you have a cat versus an elephant, which one will have more gravity acting on it? Because it has more mass

 Balanced means: › Total amount of force is equal  Unbalanced means: › Total amount of force is unequal  NET FORCE means: › Total sum of force on an object › Measured in Newtons still (btw 1 Newton= pound)

 Pick a sport and draw a picture showing someone participating in it on the back of your paper. (Drawings should be neat and colorful)  Identify where forces are acting in the picture. Draw arrows to indicate where the force is coming from and where they are going  Make bullets to answer the following questions: › Why are forces important in the sport you chose? › Give 2 examples of what would happen in your picture/sport if these forces weren’t present.

Score:Requirements: 3 Picture clearly depicts a person playing a sport ALL forces acting in the picture are identified with arrows Arrows are pointing in the correct way Classmate can explain clearly why forces are important to the sport they chose Picture is neat and colorful 2 Picture clearly depicts a person playing a sport Some of the forces acting in the picture are identified with arrows Some arrows may not be placed correctly or are missing Classmate can explain why forces are important to the sport they chose, but their explanation is unclear at some points Picture could be neater or more colorful 1 Picture does not clearly depict a person playing a sport Most of the forces acting in the picture are NOT identified with arrows Most of the arrows are not pointing correctly or are missing Classmate cannot explain clearly why forces are important to the sport they chose (explanation is unclear) Picture NEEDS to be neater or there is NO color whatsoever. 0 Didn’t do it!