1. Fields

2. There are two types of forces we encounter in everyday life
Contact Forces
Non-contact forces

3. Types of Forces
CONTACT FORCES: forces where objects have to be in "contact" with something in order to have an effect on it.
NON- CONTACT FORCES: forces where objects do NOT have to be in "contact" with something in order to have an effect on it.

4. Non-contact forces
How can objects exert forces without being in contact
Michael Faraday, proposed the concept of a field
A field is a property of space in which an object influences the space around it

5. There are three types of fields

6. TERMINOLOGY
FIELD: a region of space in which an effect of a force is felt.
FIELD LINES: these are drawn around objects that have fields around them. They are represented by arrows pointing directly toward / away from the center of the object.
Example: GRAVITATIONAL FIELD LINES AROUND EARTH

7. Last chapter we discussed the concept of a gravitational field as a region in which gravitational force can be experienced.
This field intensity (g) will change depending on location.

8. The exact same thing can be said for an “electric field”.
It is a region in which an “electrostatic force” can be experienced.
This electric field intensity will also change depending on location.

10. ELECTRIC FIELD INTENSITY
ELECTRIC FIELD INTENSITY: the electric field intensity at a point is the quotient of the electric force on a charge and the magnitude of the charge located at the point.

12. Try the following
Page #’s 11, 12, 13, 14