2. Force of Gravity What: Force of attraction between 2 objects with mass Where: Any object that has mass FBD opposite of normal When: All the time Affected by distance and mass M Increases G increases D increases G decreases How: Gravity that keeps you on Earth is applied (weight) Increase GPE when height increase Who: Affects objects with Mass Planets, humans, etc.

3. Force of Magnetism What: An attraction or repulsive force between a magnetic force Where/Who: Earth naturally has a magnetic pull and the strongest part is at the poles. This is where it has the highest potential energy. When: It is located in the magnetic field It has opposite charges attract Same charges repel How: Negative and positive poles attract Negative and negative repel Positive and positive repel -Field or area of influence - Poles are North (+) and South (-)

4. Electrical Force What: Between two charged objects that repel or attract Where: Everyday places (lights, appliances, etc) When: Everyday electromagnetism How: Complete Circuit, Generator converts (ME to EE) and goes to power lines in House Force Field/area of influence Static electricity: Only electrons get transferred to change a charge losing electrons = + charge and gaining electrons = - charge Electrons (-), Protons(+), Neutrons (0) Electromagnetism (circuit, insulator, conductor, energy source)

5. What: Force that resists objects motion When: Stops or slows motion 2 types Sliding: contact with motion Static: Contact force that causes no motion Where: when two objects that are touching Opposite of the applied force How: Feel heat Air resistance Feel and see static electricity What: Force that is acting on an object When: Stops, slows, starts or accelerate motion Where: Opposite of friction How: Exerting a force on an object Where: Opposite of gravity Underneath an object that is getting held up What: Force that pushes up on something When: Something is on a surface How: When you want something held up

6. Field/Region of influence Force of attraction Non-contact forces- can see their effects but not the actual force Attracting- PE increases when distance increases Special kind of applied force When in motion all have KE Force of attraction between any objects with mass Works with inertia to create orbital paths PE= mgh Force of attraction= mxm/dd Force of repulsion and attraction Positive and Negative charges Electromagnet- Complete circuit to magnetize metal North and South Pole Force between magnetic material Flows naturally from North to the south pole Force between electrically charged objects Static electricity Motors E  ME Generators ME  E Force across Earth Naturally