Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. When is an electric field of a charged object weakest?
   • The further away from the charged object, the weaker the field.
2. When do certain insulating materials become charged?
   • When certain insulating materials are rubbed against each other they become electrically charged.
3. What happens to a second charged object placed in the electric field of the first charged object?
   • A second charged object placed in the field experiences a Force.
4. How do certain insulting materials become charged in terms of electrons?
   • Negatively charged electrons are rubbed off one material and on to the other.
5. What happens when two objects of the same type of charge are close together?
   • Two objects that carry the same type of charge repel.
6. When is an electric field of a charged object strongest?
   • The electric field is strongest close to the charged object.
7. What is the relationship between force and distance between two charged objects?
   • The Force gets stronger as the distance between the objects decreases.
8. What happens when two objects of opposite type of charge are close together?
   • Two objects that carry different types of charge attract.
9. How would you draw the electric field pattern for an isolated charged sphere?
   • radiating lines with arrowed lines pointing from positive to negative.
10. What is the charge of a material that loses the electrons?
    • The material that gains electrons becomes negatively charged. The material that loses electrons is left with an equal positive charge.
11. What type of force can the attraction and replulsion between two charged objects be classified as?
    • Attraction and repulsion between two charged objects are examples of non-contact Force.
12. What is an electric field?
    • In an electric field a charged Particle, or charged object, experiences a Force. If the Forces acting on any object are unbalanced, it will cause the object to accelerate.
13. How is static electricity and/or a spark produced?
    • A method to create static electicity and/or a spark is by rubbing two surfaces against one another.
14. What happens to the electric field of charged objects?
    • they are distorted resulting in an electrostactic Force without the objects coming into contact with one another.
15. How does a charged object exert forces of attraction and repulsion when not in contact with another object?
    • electrostatic Forces will repel if the charges are like and attract if the charges are opposite. The evidence for this is when a rod is rubbed with a cloth the transfer of electrons from one object to another
16. How can the phenomena of static electricity be explained?
    • The transfer of electrons between objects can explain the phenomena of static electricity.